@@JohannaMueller57 It's the volume of the water x the pressure, and I assure you a fire hose holds and spits out much greater volumes of water than a pressure washer. There are videos on this channel where our lovely host is being propelled about and lifted off the ground by a hose holding >300 psi of pressure. It takes so much more than shear weight or muscle to control a fire hose at full tilt, let alone 5 times maximum theoretical power.
@@JohannaMueller57 so you're saying 3000psi would do absolutely nothing. Or that we have high pressure cleaners who are destroying the structural stability of houses. This is why poor people don't use high pressure cleaners, my mum is a genius.
@@WhatIsSanity Yep -- it all comes down to thrust. How much stuff you're throwing out the nozzle, times how fast. Mass times exit velocity. (Basically. In reality there's other stuff like the shape of the nozzle that matters in calculating thrust as well.)
Jason’s green screen is an international treasure. Also love how the hose isn’t even straight while shooting out 1500 psi of special wall-cutting water
Writer: Hey Internet, how much psi does water need to cut through concrete? Internet: 1500. Writer: Cool. Internet: ....Do you want to know how much psi a fire hydrant can produce? Internet: Sir? Sir!!!
As a writer I feel called out 😂😂😂, 'cause yes, we do get the facts beforehand but only use the ones needed to make it believeable enough to the average consumer of that media.
And there are videos of them using false hands that are just as durable as a real hand and showing what happens when you put your hand under one! It's brutal.
And the guy holding a, let's say 1 square inch nozzle, putting out 1500 pounds force per square inch... so he's just casually holding 1500 pounds of force out in front of him like it's a weed whacker.
@@micahphilson have you never used a pressure washer? 1500PSI coming out of a nozzle isn’t like there’s a 1500lb weight pushing back at you. If that were the case then any power washer can easily be turned into a jet pack
@@Fetidaf looking at the nozzle sizes for pressure washers, the nozzle diameter tends to be measured in hundredths of an inch. That means the actual jet force output from a typical pressure washer is going to be a tiny fraction of the full pump pressure because the area of spray flow will be much less than 1 square inch.
The moral of this episode: Be careful when you're watering your plants next time, because if you accidentially point the garden hose in the wrong direction there will be a hole in your house
wouldn't want to point it down either, or you'd freeze the core of the planet with all the water flooding it after the 15000000000000000000psi jet cut through half of the planet
Last man standing did an episode where they installed a security system in an apartment. The guy was somehow able to run wire in a finished building with no exposed wire and no crawl spaces above or below the wall he worked on. And despite being a home security provider somehow is able to ignore an industry standard as well as state laws when he showed them their indoor camera was apart of their smoke detector and was magically able to make the camera viewable from an app without any wifi. I laughed really hard as my job is installing security and the show just took so many liberties.
this is quite late but as an electricians apprentice i have seen this done, maybe not a smoke detector into a camera, but you can run wires like you are explaining simply by lets use your detector as an example IF it is wired through the house hiddenly then you can cut one of the wires, and connect three wires of slightly smaller gauge to it and pull it through (if there is no abursed 90s or multiples of them which would break code) and pulling the other end to or connect a fish tape to said wire and pull it through.... small, short runs can be done this ways so your example is not far fetched...
Running new wires in a house without touching attic or crawlspace isn't that difficult. It's entirely about placement of the new box compared to existing setup. If you have an outlet or switch on the same wall, you can just piggyback off the existing circuit. Running the wire itself is just a matter of cutting out the space for the new box and using a flex rod shoved up/down the wall. Anyone with experience working the electrician trade would easily be able to setup some cameras, and the "remote to your phone" is the most common setup to install these days.
@@none_o_ur_bidnis depends. We test our cotton jacket hose at 300 psi. Burst pressure could be up to 1000 depending on the manufacturer. But burst pressure is FAR in excess of working pressure.
A kinked hose at 1500 psi wouldn't be too fun to witness. Also, water jets often use 10k+ psi with garnet chunks mixed in, and those can take hours to cut through some stones depending on dimensions. With only 1500 psi, a fire hose nozzle, and sand at best, he would be lucky to cut through that in days. Not to mention good luck holding that hose with 1500 psi at that volume coming out. Hell, a decently powerful pressure washer is around 3000 psi at like 2-3 gallons per minute and those things can be difficult to handle. At 1500psi even 2-3 gallons per second from that fire hose would be impossible to hold on to (hydrants can range from like 400-2500 gallons per minute, or around 6-41 gallons per second)
I know nothing about firefighting hoses and come here mostly for charisma and sarcasm. Which part of the nozzle indicates that it is closed? Is it that big old cone in front or something more subtle?
@@Drakenwild The handle on the top. You pull it back to open it. If you lose control the force will push the nozzle back (putting the handle forward), closing the valve. If it was the other way, if you lost control, that would force it open.
The closed nozzle 😂. I also love all the goofy IV set ups , bizarre “practices” like flicking the bottle instead of the syringe, since the actor doesn’t know why we do that to begin with, etc on medical shows.
My answer; It's to dislodge potential air/gas bubbles trapped in the solution. Which you can then remove. Did I get that right? I also guess that a couple flicks to bottles AND syringes helps with mixing solutions evenly without creating potential bubbles. Though I don't know if that's even a factor in your trade. So, how did I do for a mop pushing burnt-out code monkey? 😊
Yes, the nozzle closed and he’s handling 1500psi that well, but he’s staying dry, and somehow feeding sand into the hose as an abrasive, while not only maintaining pressure, but not completely destroying that brass nozzle being used to cut through a concrete wall with abrasive.
Not nearly as interesting as interesting the fact that a hose pressurized to 1500psi could be kinked by gravity. You ever see an actual fire hose when pressurized? They become completely erect and almost inflexible. If you held one between your legs as it was pressurized, your sperm count would be deficient for the rest of your life.
You don't realize the paper clip, shoe string, a piece of tinfoil and the chewing gum that he added in when you weren't looking increases the pressure while simultaneously absorbs the force, making it easy to handle.
For information, in Europe, some reinforcement centers have very high pressure lances which are capable of crossing a wall to extinguish the inside of a confined space from the outside (example of use: fire inside a a shipping container). These lances are just over 1m long and are equipped with three "spikes" to hang on the wall and are therefore not designed for cutting, but only for making a hole...
If you want to be pedantic, a fire hose can totally blast a hole in concrete. It might take several years of continuous water, but eventually it'll wear through!
I’m on a rural department. 25 years and when I first started we still had a high pressure engine. I’m willing to bet most fire fighters have never heard of then little less used one. If I remember right the idea was to use very high pressure and low volume to create large amounts of steam to put the fire out. I could be wrong. By the point I was a fire fighter all we used it for was a wild land fire. If memory serves it was like 750-850 psi and it was a hard rubber house with something similar to a pressure washer wand. They were called bean pumps and were 2 stage. You could peel siding and blow singles off with it tho. Worked great for grass fire. You could basically cut a fire line while putting water on to create mud
John Bean high pressure fog system. Most of their trucks had both a high pressure pump and a volume pump on them. I have a 1959 Ford F850 John Bean engine.
My department had a military spec Dodge power wagon with a John Bean High Pressure pump and a 300 gallon tank as a brush truck. It also had a 20 K LB PTO driven winch. The beast was unstoppable...it'd make it's own roads into the woods, then the crew would kick booty with the two high pressure lines and the iconic John Bean high pressure nozzles. That little rig put out a lot of fire in the 20 or so years it was in service!
@@photone when i was a kid, my department had two. By the time they auctioned them off, they'd been abused so badly nobody in their right mind would buy one.
To be fair, the original MacGyver also did things that couldn't possibly work in real life, like blowing a hole in a concrete wall with a cold capsule full of cesium.
@@bobrulz666 read in an article at one point that it was purposeful, even if the theory was possible they always left out a or several key ingredients so it was impossible so kids couldn't hurt themselves. Thing about the old show though was that it almost always sounded like it could actually work
@@bobrulz666 I'm with you on that one because lately kids are dumber then usual where we have kids eating Tide Pods, mouthful of cinnamon, and starting themselves on fire for the last 20 years which it's for the best not showing how to make homemade explosives.
@@bobrulz666 If anything, I think it would have the opposite effect, by making the reaction seem much more powerful (and therefore cooler) than it actually is. By the way, by no means did all the implausible stuff involve explosives, that was just the first thing that came to mind.
I have just discovered this guy, and AWESOME! I've been binge watching all the videos. I'm Canadian and for some reason 🤔😜 he just hits all the right buttons!🤣😂🤣 Love his sense of humor!😆 Keep it up!
I was about to say, the most powerful pressure washers on the market typically top out at 5600 psi, and there's videos showing them struggling to get caked mud off driveways
They achieve that pressure by pumping water through a small opening. And while the pumping action is adding energy to the system, ultimately its very little water actually coming out.
They usually can't get anywhere close to that pressure though. Flow rate is an important and often overlooked aspect. Those systems need a lot of water to generate that pressure, and the taps they get connected to simply don't have the output. I've seen people try and use 100L/min systems off a 8L/min supply and wonder why it's not working great.
@@lordsrednuas Yes, They very much do get to that pressure, Its just there not that much water coming out to make it seem like what you think it would be
'Pro-sumer' pressure washers top out at about 4500psi * 4GPM (20MPa * 16L/min). Barring DIY plumbfuckery, any household tap should be able to make 4GPM wide open. Your showerhead in the US has a restrictor plate to limit it to 2.5GPM.@@lordsrednuas There are professional and custom solutions that will do a great deal more than that, and anybody that buys one should already be this familiar with plumbing.
I'll never forget walking around a R&D machine shop with the head machinists where he told me when we were standing beside the waterjet they had, "This thing cuts at 70,000 PSI. If it were to burst we'd all be dead" The thing would cut through 6 inches of aluminum.
I'm late to this party, but what was the working fluid? Because even at 70,000 PSI, water only compresses by about 12-13%. The pressurized lines would have to have several inches of diameter for there to be enough water in them for decompression to be a fatal hazard even to the machine operator, much less the entire shop.
@@danielhawkins6425 Depends on the rifle, 5.56 is about 55,000 .308 makes 62,000. The new sig .277 Fury makes 80,000. Obviously waterjet maintains that pressure consistently though, which is terrifying. Weaponizing water, the most terrifying thing ever. Waterboarding is child's play compared to that.
Also, they have $300 pressure washers from RYOBI that have 3000 psi.... I think they take paint off, but I dont think they're cutting through concrete anytime soon, unless it is brand new from the concrete dust factory...
Absolutely. You jackhammer or use a concrete saw if the pad is less than 7 inches thick. For a vertical wall like this I would suggest the DeWalt D25960K as it is light enough to hold perpendicular to the wall being demolished.
Technically they could cut through some of the concrete, but you would have to add a cutting medium in that would also start cutting through the nozzle that’s not built for it real fast.
Its possible to have high PSI on a small surface. 3000 psi on 1/10th inch stream of a waterjet would be a measly 150 PSI on 2 inches of water from a small hose
You could cut some concrete with a homeowner pressure washer, but the concrete would have had to been cut with a LOT of calcium carbonate for a "successful" winter pour. And then that concrete would not be remotely structural. You could also probably cut it with a spoon.
Im not a fire fighter. But ive done a water blasting job with a jet rodder, and a makeshift gun( basically a metal pipe) the idle pressure on the jetter is about 700psi. Funny enough the guy wanted my and my partner to take turns water blasting but i said it was a bad idea.hmmmmmmm Anyway long story short its took the two of us sitting down back to back to keep the damn thing under control, needless to say if either me or my buddy had tried to solo that sh#t we would have died.
You have to remember, that's literally 700 pounds' worth of force (or in this case, 1,500!) for every square inch area of the outlet nozzle! If that nozzle is 1 square inch, that dude is essentially bench pressing the weight of a cow!
Considering the apparent size of the opening on that nozzle.. there is at least half a TON of force pushing him back ... that on top of the obvious kink in the line means either he is worlds densest human ever... or there is no where near that much pressure coming out of that hose.
Could you imagine an 1 1/2 or 1 3/4 line that could handle 1500 psi! Not to mention being able to keep your feet on the ground and not being twirled around like a cartoon character at the end of the line. That is if the bale on that nozzle would have been open. 😂😂😂
Actually there are hoses than could handle 1500 psi. The hose im using for my private fire pump has a working pressure of 60Bar/870Psi and a burst pressure of 150Bar/2175Psi.
I work in the oil field and we have 3000 psi hoses no more than an inch. They're black and hard as a rock and they definitely don't kink under pressure (or without pressure).
I saw the description and could not for the life of me remember such an episode. I was thinking of RDA's original, of course, lol. I always forget about the remake until things like this remind me.
i remember from my time in fire and rescue we had a few different nozzles for different things. yea sure normal sprayer was standard but we had one that looked like a fork that could be secured to a wall, the pressure is then upped to begin cutting through wood, stone and metal til it makes a tiny hole in the other side of the wall. the way it cuts through the wall is very fun because if it manages to not hit a radiator or a pipe it will sudden fill the room with a high pressure mist of water to suddenly bring temperatures down. from what i knew we didnt have any that turned the hose into a straight up water cutter thats what we have the other cutters for.
The milk chocolate bars on leaking sulferic acid leak REALLY WORKS! Even using back pressure in a fire hose to lift a heavy beem and tying a loop around a tree limb to raise a log by twisting the two decending ropes together. My car was being towed away without my concent and while the two workers went inside a diner to have coffee i pulled out my vertical rachet jack, raised the bumper just enough to displace heavy cast metal hooks from beneth my car and quickly drop the front end and park my car far enough away to observe their reaction! I even saved a guy’s life with a creative Macgyver idea who had no idea he was sbout to become inned under his car when he failed to set the cars parking brake and the jack leaned forward snapping the tail lamp! Instsntly i tossed a spare tire beneath the rear passenger door and dragged a neive and angry mechanic out feet first and when i showed him the big picture we immediately became best friends. Richard Dean Anderson was the best Mac’chanic in the original series and there was no misinformation. Even using half dollars and jumper cables on a 12 volt system as a spot welder, or repairing a spark plug welding a flattened nail and shaping it into the perfect gap to reassemble into an outboard motor is genious! These episodes used real science and inspired me to think outside the box.
It's amazing what you can do with a garden hose, some torn rags, and a lawn grass seed spreader. I'm pretty sure that seed spreader was the key to getting 1500 psi. That, and the 10 guys in the background that just drank a keg of beer.
Lmao. I love these videos so much and I learn so much as well. I hope these videos get used to educate firefighters on what not to do. You should be a movie consultant, it would improve all those shit shows considerably. I would actually start watching them
I noticed the almost 90* bend in the hose right before the nozzle. What looked like cotton jacketed brushfire hose, a 2 inch smooth bore nozzle, hmmm...wonder if I can rig something up like that to wreck out my old cement garage floor?????
Also that's one hell of a kink for being a 1 1/2' bumper line charged at 1500 psi. Its also pretty amazing that he can get 1500 psi from a hose that can only be pressure safety tested at a max of 300 psi, MacGyver is the real deal man.
When I was in 1st grade I broke and dislocated my elbow very badly. The osteosurgeon said it was the worst break he'd ever seen, but he looked JUST like McGiver (and I assumed that's who he was), so I knew I'd be ok, haha. Also, the EMTs and police officer who had arrived first came by after my surgery to give me a teddy bear. Class acts ❤
My pressure washer is 2600 psi and I safely use it to rinse the car after washing. Mind you, the hose for it is about the same diameter as one of my fingers on the outside and probably a similar diameter to my fifth metacarpals on the inside.
I've run commercial CAT pump rigs that could do 6+ GPM @ 4500 PSI. I'm 6' 3" 250#'s and built like an old school farm boy and those things when running flat out are exhausting. Beyond that, the only practical way to use them without destroying whatever is being washed is with very wide-angle oversized nozzles in broad sweeping patterns or idled way down.
@@HariSeldon913 1500 PSI with a small nozzle is not a big amount of water displaced. 1500 PSI with a big nozzle will launch you in the sky. Assuming no energy losses, an average firehose at 1500 PSI will lift a small car vertically. That's thirty times the thrust of a normal firehose.
A couple of the ships I served aboard (a very, very long time ago) normally had an at-sea firemain pressure of 120-140 psi. Inport was much lower when hooked up to pierside water. We also had smooth bore nozzles for 1.5" and 2.5" hoses. Used mostly for main deck cleanup. Oh, and they had no bail, that's why we called them "suicide nozzles".
A quick crunch of the numbers shows a flow rate of 288gpm with a reaction force of 589lb for a 1/2" smooth bore at 1500psi. No less impressive, of course, than the fact that's at least 5x the service pressure of that commercial single jacket hose line.
Alright I'm a bit late Can you tell me what the math you use to find these numbers is? I would love to apply this to my workplace and would love to get an actual formula for this
I’m not a firefighter trained guy, BUT my dad was lol. I seem to remember getting told when I was in the Regimental Police British Army 1981 ish (we had a camp hose cart) that you should never straddle the hose? Of course to get the hose to the fire two guys had to run and pull the cart behind them to the nearest hydrant, ahhhhhhhh the good old days
Not to mention, let's say let's say that nozzle has a 1 square inch outlet, putting out 1500 pounds force per square inch... so he's just casually holding 1,500 pounds of force out in front of him like he's not literally bench pressing the weight of a cow!
In the Navy we had a hose TEAM to fight fires, 2 hoses, one person on each nozzle, and 3 or 4 people behind them to control the hose, and we only had about 125PSI. Oh yeah, and that Asian chick is a Cylon!
If you can handle a 1500 psi steam and cut through that, probably would of been faster to... just... push.
@@JohannaMueller57
It's the volume of the water x the pressure, and I assure you a fire hose holds and spits out much greater volumes of water than a pressure washer. There are videos on this channel where our lovely host is being propelled about and lifted off the ground by a hose holding >300 psi of pressure. It takes so much more than shear weight or muscle to control a fire hose at full tilt, let alone 5 times maximum theoretical power.
Don't worry bout the physics fact nazis... it made me laugh
*would have
@@JohannaMueller57 so you're saying 3000psi would do absolutely nothing. Or that we have high pressure cleaners who are destroying the structural stability of houses. This is why poor people don't use high pressure cleaners, my mum is a genius.
@@WhatIsSanity Yep -- it all comes down to thrust. How much stuff you're throwing out the nozzle, times how fast. Mass times exit velocity. (Basically. In reality there's other stuff like the shape of the nozzle that matters in calculating thrust as well.)
Jason’s green screen is an international treasure.
Also love how the hose isn’t even straight while shooting out 1500 psi of special wall-cutting water
Ikr lmao
Right? He'd be flying in the air like Spanky trying to save their burning clubhouse from The Little Rascals.
No safety glasses either, apparently the water just disintegrates the wall with no particle kickback!
Also looks like a inch and a half cotton or nylon hose that would be rated and hydro tested at 300 psi so at 1500 psi its at 5 times its max pressure
I love comments that build off each other like this and each point out something else that's wrong with these types of scenes.
Writer: Hey Internet, how much psi does water need to cut through concrete?
Internet: 1500.
Writer: Cool.
Internet: ....Do you want to know how much psi a fire hydrant can produce?
Internet: Sir? Sir!!!
Sounds like me every time I hear about something new. I spend about two seconds googling it and I'm now an expert on the subject ☺️
Only that water cutting starts at 600 bar (~8-9000psi)
@@wolf310ii i cut thru rock at work with a water jet, low is 16,000 psi and high is 60,000 psi at 1.5 gal a min
And people wonder why studios want to replace writers with ChatGPT
As a writer I feel called out 😂😂😂, 'cause yes, we do get the facts beforehand but only use the ones needed to make it believeable enough to the average consumer of that media.
Just in case anyone was wondering, industrial waterjets run on 50000psi, have carbide nozzles, and usually involve abrasives.
usually stuff like garnet and often use a ruby or diamond pinhole nosle prior to mixing to create the pressure.
And there are videos of them using false hands that are just as durable as a real hand and showing what happens when you put your hand under one!
It's brutal.
presumably the sand he mentions in passing is meant to be the abrasive. It doesn't make any of this less stupid, though
Thanks for the info. Nice to learn some new stuff now and again
Thanks for the info. Nice to learn some new stuff now and again
Big props to the hose that can handle 1500psi without bursting.
He really trusts that hose. Why else would he have it around his private parts.
And the guy holding a, let's say 1 square inch nozzle, putting out 1500 pounds force per square inch... so he's just casually holding 1500 pounds of force out in front of him like it's a weed whacker.
Also, it’s full of sand too
@@micahphilson have you never used a pressure washer?
1500PSI coming out of a nozzle isn’t like there’s a 1500lb weight pushing back at you.
If that were the case then any power washer can easily be turned into a jet pack
@@Fetidaf looking at the nozzle sizes for pressure washers, the nozzle diameter tends to be measured in hundredths of an inch. That means the actual jet force output from a typical pressure washer is going to be a tiny fraction of the full pump pressure because the area of spray flow will be much less than 1 square inch.
The moral of this episode: Be careful when you're watering your plants next time, because if you accidentially point the garden hose in the wrong direction there will be a hole in your house
wouldn't want to point it down either, or you'd freeze the core of the planet with all the water flooding it after the 15000000000000000000psi jet cut through half of the planet
@@UnicaLuce Or you would just fly away like a water rocket
What nation we talking about? Because reasons.
The moral of the story is fad remakes always suck. Never waste your time.
@@daviddrake5991they are probably talking about USA which some states to have relatively “weak” walls
I love how even the actress looks skeptical of what he’s doing
Last man standing did an episode where they installed a security system in an apartment. The guy was somehow able to run wire in a finished building with no exposed wire and no crawl spaces above or below the wall he worked on. And despite being a home security provider somehow is able to ignore an industry standard as well as state laws when he showed them their indoor camera was apart of their smoke detector and was magically able to make the camera viewable from an app without any wifi. I laughed really hard as my job is installing security and the show just took so many liberties.
this is quite late but as an electricians apprentice i have seen this done, maybe not a smoke detector into a camera, but you can run wires like you are explaining simply by lets use your detector as an example IF it is wired through the house hiddenly then you can cut one of the wires, and connect three wires of slightly smaller gauge to it and pull it through (if there is no abursed 90s or multiples of them which would break code) and pulling the other end to or connect a fish tape to said wire and pull it through.... small, short runs can be done this ways so your example is not far fetched...
Running new wires in a house without touching attic or crawlspace isn't that difficult. It's entirely about placement of the new box compared to existing setup. If you have an outlet or switch on the same wall, you can just piggyback off the existing circuit. Running the wire itself is just a matter of cutting out the space for the new box and using a flex rod shoved up/down the wall. Anyone with experience working the electrician trade would easily be able to setup some cameras, and the "remote to your phone" is the most common setup to install these days.
@ShaggyRogers1 No, you can't just piggyback off of the existing circuit because everything he just did is on low voltage. That would be a huge no no.
A part*
cam could of had a mobile connection which makes sense since it then still works when power is cut
Also can't ignore that this guy was able to kink a hose with 1500 psi and also the hose stood up to 1500 psi
It was developed from the space program...🤣
Haha kink
How much psi can a fire hose handle?
@@none_o_ur_bidnis depends. We test our cotton jacket hose at 300 psi. Burst pressure could be up to 1000 depending on the manufacturer. But burst pressure is FAR in excess of working pressure.
A kinked hose at 1500 psi wouldn't be too fun to witness. Also, water jets often use 10k+ psi with garnet chunks mixed in, and those can take hours to cut through some stones depending on dimensions. With only 1500 psi, a fire hose nozzle, and sand at best, he would be lucky to cut through that in days. Not to mention good luck holding that hose with 1500 psi at that volume coming out.
Hell, a decently powerful pressure washer is around 3000 psi at like 2-3 gallons per minute and those things can be difficult to handle. At 1500psi even 2-3 gallons per second from that fire hose would be impossible to hold on to (hydrants can range from like 400-2500 gallons per minute, or around 6-41 gallons per second)
I was wondering at the end if you'd call out the nozzle being closed, you did not disappoint
I know nothing about firefighting hoses and come here mostly for charisma and sarcasm. Which part of the nozzle indicates that it is closed? Is it that big old cone in front or something more subtle?
@@Drakenwild I'd say big ass cone
@@Drakenwild The handle on the top. You pull it back to open it. If you lose control the force will push the nozzle back (putting the handle forward), closing the valve. If it was the other way, if you lost control, that would force it open.
I only knew this because my hose has a similar handle lol
@@ta33370 oh, I get it, thanks!
That's no MacGyver, that MacGorver. Dean Anderson forever man
Richard Dean Anderson is the only MacGyver!
The closed nozzle 😂. I also love all the goofy IV set ups , bizarre “practices” like flicking the bottle instead of the syringe, since the actor doesn’t know why we do that to begin with, etc on medical shows.
My answer; It's to dislodge potential air/gas bubbles trapped in the solution. Which you can then remove.
Did I get that right?
I also guess that a couple flicks to bottles AND syringes helps with mixing solutions evenly without creating potential bubbles.
Though I don't know if that's even a factor in your trade. So, how did I do for a mop pushing burnt-out code monkey? 😊
This is why the original Richard Dean Anderson show will never be beat.
Even when it was scientifically impossible he had the charisma to carry it off
"That's never going to work."
*grin
And suddenly physics is in love with you. I'll accept it.
Stargateeee
@@asundev3326 I'm stuck on a glacir with McGuyver!
Mythbusters best episodes where about MacGyver unless they where blowing up stuff.
And 90% of the stunts he did were completely possible. Although a few were highly improbable.
Yes, the nozzle closed and he’s handling 1500psi that well, but he’s staying dry, and somehow feeding sand into the hose as an abrasive, while not only maintaining pressure, but not completely destroying that brass nozzle being used to cut through a concrete wall with abrasive.
And the people that come out from the cut wall are dry as well
because the fairy princess always wins
Some people ar just good at doing it. Stop hating.
@@karlkarlsson9126 ?...tf are you on about?
@@tsukiokami1999 I have no idea. I read my comment and have no memory of it.
Ok.
No more drinking coffee whilst watching Jason.
I'm currently tasting that coffee up my nose and probably my frontal lobe, too...
Loved it when you said Nozzle that is Closed. Had to take a double look on that one!!!
Interesting that a 1500 PSI stream of water came out completely fine when there was a kink literal inches before the nozzle.
was thinking the same think there
Not nearly as interesting as interesting the fact that a hose pressurized to 1500psi could be kinked by gravity. You ever see an actual fire hose when pressurized? They become completely erect and almost inflexible. If you held one between your legs as it was pressurized, your sperm count would be deficient for the rest of your life.
I'm actually impressed they remembered to have a water in a hose so its looks in use :)
Just imagining the water pressure actually increasing to that 1500 in an instant and him never needing to worry about causing unwanted pregnancy.
You don't realize the paper clip, shoe string, a piece of tinfoil and the chewing gum that he added in when you weren't looking increases the pressure while simultaneously absorbs the force, making it easy to handle.
For information, in Europe, some reinforcement centers have very high pressure lances which are capable of crossing a wall to extinguish the inside of a confined space from the outside (example of use: fire inside a a shipping container). These lances are just over 1m long and are equipped with three "spikes" to hang on the wall and are therefore not designed for cutting, but only for making a hole...
^
Do they hook them up to fire hydrants?
Also, in Europe, we call that a stone wall, not concrete.
If you want to be pedantic, a fire hose can totally blast a hole in concrete.
It might take several years of continuous water, but eventually it'll wear through!
I’m on a rural department. 25 years and when I first started we still had a high pressure engine. I’m willing to bet most fire fighters have never heard of then little less used one. If I remember right the idea was to use very high pressure and low volume to create large amounts of steam to put the fire out. I could be wrong. By the point I was a fire fighter all we used it for was a wild land fire. If memory serves it was like 750-850 psi and it was a hard rubber house with something similar to a pressure washer wand. They were called bean pumps and were 2 stage. You could peel siding and blow singles off with it tho. Worked great for grass fire. You could basically cut a fire line while putting water on to create mud
All of our new wildland fire appliances come with high pressure pumps as standard now. We no longer black out the fire edge, we brown it out.
@@DeanCording I though browning stuff out only happened when your mobile water supply arrived on an inappropriate number of wheels.
John Bean high pressure fog system. Most of their trucks had both a high pressure pump and a volume pump on them. I have a 1959 Ford F850 John Bean engine.
My department had a military spec Dodge power wagon with a John Bean High Pressure pump and a 300 gallon tank as a brush truck. It also had a 20 K LB PTO driven winch. The beast was unstoppable...it'd make it's own roads into the woods, then the crew would kick booty with the two high pressure lines and the iconic John Bean high pressure nozzles. That little rig put out a lot of fire in the 20 or so years it was in service!
@@photone when i was a kid, my department had two. By the time they auctioned them off, they'd been abused so badly nobody in their right mind would buy one.
To be fair, the original MacGyver also did things that couldn't possibly work in real life, like blowing a hole in a concrete wall with a cold capsule full of cesium.
Yeah but it makes sense they bullshitted explosives so kids wouldn't try it at home. Most shit he did otherwise could kinda work.
@@bobrulz666 read in an article at one point that it was purposeful, even if the theory was possible they always left out a or several key ingredients so it was impossible so kids couldn't hurt themselves. Thing about the old show though was that it almost always sounded like it could actually work
@@bobrulz666 I'm with you on that one because lately kids are dumber then usual where we have kids eating Tide Pods, mouthful of cinnamon, and starting themselves on fire for the last 20 years which it's for the best not showing how to make homemade explosives.
@@bobrulz666 If anything, I think it would have the opposite effect, by making the reaction seem much more powerful (and therefore cooler) than it actually is. By the way, by no means did all the implausible stuff involve explosives, that was just the first thing that came to mind.
@@jic1 Of course it wasn't all practical, that's why I said most could kinda work.
Rewatching this and the closed nozzle is once again what got me😂
I have just discovered this guy, and AWESOME! I've been binge watching all the videos. I'm Canadian and for some reason 🤔😜 he just hits all the right buttons!🤣😂🤣 Love his sense of humor!😆 Keep it up!
I was about to say, the most powerful pressure washers on the market typically top out at 5600 psi, and there's videos showing them struggling to get caked mud off driveways
They achieve that pressure by pumping water through a small opening. And while the pumping action is adding energy to the system, ultimately its very little water actually coming out.
They usually can't get anywhere close to that pressure though.
Flow rate is an important and often overlooked aspect.
Those systems need a lot of water to generate that pressure, and the taps they get connected to simply don't have the output.
I've seen people try and use 100L/min systems off a 8L/min supply and wonder why it's not working great.
@@lordsrednuas Yes, They very much do get to that pressure, Its just there not that much water coming out to make it seem like what you think it would be
'Pro-sumer' pressure washers top out at about 4500psi * 4GPM (20MPa * 16L/min). Barring DIY plumbfuckery, any household tap should be able to make 4GPM wide open. Your showerhead in the US has a restrictor plate to limit it to 2.5GPM.@@lordsrednuas
There are professional and custom solutions that will do a great deal more than that, and anybody that buys one should already be this familiar with plumbing.
I'll never forget walking around a R&D machine shop with the head machinists where he told me when we were standing beside the waterjet they had, "This thing cuts at 70,000 PSI. If it were to burst we'd all be dead"
The thing would cut through 6 inches of aluminum.
For some comparison, that's higher than the pressure in the breech of a rifle.
Thats it? I had to cut through 3-5 inches of Ti
I'm late to this party, but what was the working fluid? Because even at 70,000 PSI, water only compresses by about 12-13%. The pressurized lines would have to have several inches of diameter for there to be enough water in them for decompression to be a fatal hazard even to the machine operator, much less the entire shop.
I use one of those to shave my nuts. It's the only thing strong enough.
@@danielhawkins6425
Depends on the rifle, 5.56 is about 55,000 .308 makes 62,000. The new sig .277 Fury makes 80,000.
Obviously waterjet maintains that pressure consistently though, which is terrifying. Weaponizing water, the most terrifying thing ever. Waterboarding is child's play compared to that.
RUclips has done it again, recommeneded a channel that I can't stop watching
it all makes sense when you understand the power of a paperclip
That would hilarious to to see this dude hold onto a 1500psi nozzle with an opening diameter of an inch.
McGyver moon program
You mean the water based rail gun?
“Ahhh… Houston? We have a negative on that trajectory. Didn’t quite make orbit, I’m afraid he’s going to burn up on reentry.”
@@HM2SGT _Ground Control, to Major Fail..._
@@HM2SGT
Don't worry, he has his own water supply...... 🤔🤦♂️
Not to mention the hose was kinked directly behind the nozzle
Thank you. I always have a good laugh no matter how many time I rewatch.
Chuck Norris: "Who's this amateur?"
Original MacGuyver: "No idea. I don't know where they find these people."
Also, they have $300 pressure washers from RYOBI that have 3000 psi.... I think they take paint off, but I dont think they're cutting through concrete anytime soon, unless it is brand new from the concrete dust factory...
Absolutely. You jackhammer or use a concrete saw if the pad is less than 7 inches thick. For a vertical wall like this I would suggest the DeWalt D25960K as it is light enough to hold perpendicular to the wall being demolished.
Technically they could cut through some of the concrete, but you would have to add a cutting medium in that would also start cutting through the nozzle that’s not built for it real fast.
@@stuckgrenadepin.225 yeah, but it would take heavy modifications to do that. Actual waterjets are like 50k psi, so it wouldn't do a good job either.
Its possible to have high PSI on a small surface. 3000 psi on 1/10th inch stream of a waterjet would be a measly 150 PSI on 2 inches of water from a small hose
You could cut some concrete with a homeowner pressure washer, but the concrete would have had to been cut with a LOT of calcium carbonate for a "successful" winter pour.
And then that concrete would not be remotely structural.
You could also probably cut it with a spoon.
Never stop man, these are always great.
tyvm from not letting me waste any time at all watching the new series...
Love this!! Found a new favrouite channel!!
Somehow the hose did not break after having 1500 PSI running through it?!
If hoes don't break, neither will the hose
They do make 1500 psi capable hoses, my industry has them. However, they do NOT look like that and good luck kinking one even with no pressure on it.
it's because it was closed
Im not a fire fighter. But ive done a water blasting job with a jet rodder, and a makeshift gun( basically a metal pipe) the idle pressure on the jetter is about 700psi.
Funny enough the guy wanted my and my partner to take turns water blasting but i said it was a bad idea.hmmmmmmm
Anyway long story short its took the two of us sitting down back to back to keep the damn thing under control, needless to say if either me or my buddy had tried to solo that sh#t we would have died.
Ayuh, that’s about the size of it.
A jetter truck? Or an NLB?
@@justin456 jetter truck JJC
You have to remember, that's literally 700 pounds' worth of force (or in this case, 1,500!) for every square inch area of the outlet nozzle! If that nozzle is 1 square inch, that dude is essentially bench pressing the weight of a cow!
I love that bit at the end… oh, and the nozzle is closed. lol 😂
Dude! Your videos are HILARIOUS! I’m not a first responder, but I certainly like catching the ridiculousness in movies and TV shows.
And the hose is kinked nearly in half. 🤣
It's common with hoses out of vibranium. You need at least 2000 psi for them to be straight!
Considering the apparent size of the opening on that nozzle.. there is at least half a TON of force pushing him back ... that on top of the obvious kink in the line means either he is worlds densest human ever... or there is no where near that much pressure coming out of that hose.
He's using his X-Men powers to make it work.
Eh, did you Hear that thing? His Xmen power is REALLY electrical but he hides it....lol
The concreate read the script that said it had to fall apart at the whipped cream pressure water, so it did.
That actor ate his Wheaties the day they made that episode to be able to control the hose.
@@GalanDunIf his hand slips he'll really cause some Havok.
You NEED to do more of these!
"Coming out of a nozzle that's closed!" My dude corrected him like he was pretending to play a guitar. 🤣
I watched both of these shows and rolled my eyes at the inaccuracies so much.
Could you imagine an 1 1/2 or 1 3/4 line that could handle 1500 psi! Not to mention being able to keep your feet on the ground and not being twirled around like a cartoon character at the end of the line. That is if the bale on that nozzle would have been open. 😂😂😂
Actually there are hoses than could handle 1500 psi. The hose im using for my private fire pump has a working pressure of 60Bar/870Psi and a burst pressure of 150Bar/2175Psi.
There are hoses that can easily hold that amount of pressure
Intact industrial water cutters use 50kpsi and still use thinner pipes that a fire hose
@@Alucard-gt1zf Yeah i know but i was talking about fire hoses.
I work in the oil field and we have 3000 psi hoses no more than an inch. They're black and hard as a rock and they definitely don't kink under pressure (or without pressure).
@@73h1337h4xx0r at what diameter of hose?
I love these videos so much.
I saw the description and could not for the life of me remember such an episode. I was thinking of RDA's original, of course, lol. I always forget about the remake until things like this remind me.
i remember from my time in fire and rescue we had a few different nozzles for different things.
yea sure normal sprayer was standard but we had one that looked like a fork that could be secured to a wall, the pressure is then upped to begin cutting through wood, stone and metal til it makes a tiny hole in the other side of the wall.
the way it cuts through the wall is very fun because if it manages to not hit a radiator or a pipe it will sudden fill the room with a high pressure mist of water to suddenly bring temperatures down.
from what i knew we didnt have any that turned the hose into a straight up water cutter thats what we have the other cutters for.
The old Macgyver was better than havoc over here. Love your videos!
lol glad to hear vindication from a pro when I questioned this episode of mcguiver back when it came out.
This man makes me so happy
Gotta be the most powerful hose in the world to do that
Where is that contract?
Just like with guns. There is NO RECOIL! xD
P.S.: Also, you need 60 000 - 100 000 psi to cut concrete (= 4000 - 7000 bar*)
clearly it is a Good Use of Energy /s
Bar is both singular and plural.
@@judsonkr Will keep in mind for future
OMG he just brightens my day
The milk chocolate bars on leaking sulferic acid leak REALLY WORKS! Even using back pressure in a fire hose to lift a heavy beem and tying a loop around a tree limb to raise a log by twisting the two decending ropes together. My car was being towed away without my concent and while the two workers went inside a diner to have coffee i pulled out my vertical rachet jack, raised the bumper just enough to displace heavy cast metal hooks from beneth my car and quickly drop the front end and park my car far enough away to observe their reaction! I even saved a guy’s life with a creative Macgyver idea who had no idea he was sbout to become inned under his car when he failed to set the cars parking brake and the jack leaned forward snapping the tail lamp! Instsntly i tossed a spare tire beneath the rear passenger door and dragged a neive and angry mechanic out feet first and when i showed him the big picture we immediately became best friends. Richard Dean Anderson was the best Mac’chanic in the original series and there was no misinformation. Even using half dollars and jumper cables on a 12 volt system as a spot welder, or repairing a spark plug welding a flattened nail and shaping it into the perfect gap to reassemble into an outboard motor is genious! These episodes used real science and inspired me to think outside the box.
i recently started rewatching the original macgyver as well as the new
and the movie magic of the new one is just hilarious
if you haven't. give Scorpion a look. it's almost as funny.
Not to mention holding it between his legs and a hose that isn’t anywhere close to being tested at that pressure.
I love the kink in the hose right before the nozzle...
🤣🤣🤣🤣 I’m dyin’ here! Also I love the closing music.
It's amazing what you can do with a garden hose, some torn rags, and a lawn grass seed spreader.
I'm pretty sure that seed spreader was the key to getting 1500 psi. That, and the 10 guys in the background that just drank a keg of beer.
The keg of beer being drunk is the most important part of the science.
Lmao. I love these videos so much and I learn so much as well. I hope these videos get used to educate firefighters on what not to do. You should be a movie consultant, it would improve all those shit shows considerably. I would actually start watching them
I've made it to season 3 of mcgiver and the whole show is like this.
I don't know how this channel ended up in my recommendations but I'm so glad it did 😂🤣
I love how the people are just standing there confused as you are.
These videos are hilarious.. Every single second 😂😂
Dude I cant get over how hilarious you are.
I’m back again and I still love them
Thank you for dismantling one of the most garbage reboots of old shows ever. Legend!
I crave more FDC, i have watched everything
Rolling on the floor laughing after that "Closed" :D
Oh my gosh you're funny as hell. I love your green screen vids. I'm dying of laughter 😂😂😂
I noticed the almost 90* bend in the hose right before the nozzle. What looked like cotton jacketed brushfire hose, a 2 inch smooth bore nozzle, hmmm...wonder if I can rig something up like that to wreck out my old cement garage floor?????
Let me know how that worked out ok
Also that's one hell of a kink for being a 1 1/2' bumper line charged at 1500 psi. Its also pretty amazing that he can get 1500 psi from a hose that can only be pressure safety tested at a max of 300 psi, MacGyver is the real deal man.
Hollywood physics. It's beyond believable!
Man I actually love the show it’s interesting
heliarously funny commentary again thanks Jason 🤣🤣🤣🤣🤣🤣
When I was in 1st grade I broke and dislocated my elbow very badly. The osteosurgeon said it was the worst break he'd ever seen, but he looked JUST like McGiver (and I assumed that's who he was), so I knew I'd be ok, haha. Also, the EMTs and police officer who had arrived first came by after my surgery to give me a teddy bear. Class acts ❤
I mean, he IS MacGyver. He always played hard and fast with the rules, which apparently includes the laws of physics.
Yes, let us not let physics get in the way of a good story.
@@englishtwister there was a good story in this series? When? Where?
Mcgyver?! You're expanding! Nice!
The end of this video, is a masterpiece
My pressure washer is 2600 psi and I safely use it to rinse the car after washing. Mind you, the hose for it is about the same diameter as one of my fingers on the outside and probably a similar diameter to my fifth metacarpals on the inside.
safe PSI for a car is 1200 to 1900, 2600 would take the paint off of your car. That said, 1500 to cut concrete is still ridiculous and ludicrous
I've run commercial CAT pump rigs that could do 6+ GPM @ 4500 PSI. I'm 6' 3" 250#'s and built like an old school farm boy and those things when running flat out are exhausting.
Beyond that, the only practical way to use them without destroying whatever is being washed is with very wide-angle oversized nozzles in broad sweeping patterns or idled way down.
@@RWAsur I use the 30 or 40 degree nozzle, so it probably is in a safe range. Been doing it several years on multiple cars and never had a problem.
@@HariSeldon913 1500 PSI with a small nozzle is not a big amount of water displaced. 1500 PSI with a big nozzle will launch you in the sky.
Assuming no energy losses, an average firehose at 1500 PSI will lift a small car vertically. That's thirty times the thrust of a normal firehose.
A couple of the ships I served aboard (a very, very long time ago) normally had an at-sea firemain pressure of 120-140 psi. Inport was much lower when hooked up to pierside water.
We also had smooth bore nozzles for 1.5" and 2.5" hoses. Used mostly for main deck cleanup. Oh, and they had no bail, that's why we called them "suicide nozzles".
Well, the takeaway is that Macgyver is a man of many talents. ;)
That over 100 bar the sound alone would rupture his ear drums
A quick crunch of the numbers shows a flow rate of 288gpm with a reaction force of 589lb for a 1/2" smooth bore at 1500psi.
No less impressive, of course, than the fact that's at least 5x the service pressure of that commercial single jacket hose line.
Alright I'm a bit late
Can you tell me what the math you use to find these numbers is? I would love to apply this to my workplace and would love to get an actual formula for this
I’m not a firefighter trained guy, BUT my dad was lol. I seem to remember getting told when I was in the Regimental Police British Army 1981 ish (we had a camp hose cart) that you should never straddle the hose? Of course to get the hose to the fire two guys had to run and pull the cart behind them to the nearest hydrant, ahhhhhhhh the good old days
Town where my father started had 80 PSI out most hydrants. It was amazing. There were times he wouldn't even take the pump out of idle.
😂Loved the ripping cloth as a comma in his sentence.
1500 psi? Lol what is this. At least the original had some truth to it.
Omfg I want this guy to be a drill instructor.
Lol i howled when you said thats closed 🤯🥳😭😭🤣🤣🤣☠️☠️
love how the hose has a bend in it
So I have a pressure washer in the shed with twice as much pressure... Think I'll go cut open a bank vault...
SMH.
See you in, oh, 20 years....when you make it into the vault!
@@RICDirector I see sarcasm goes right over your head...
To be fair, if it had 1500 PSI, the valve being in the closed position wouldn't be much of a concern.
Yeah and ppl wondered why i got rid of cable television 😆 i love your last comment! "A water nozzle that's Cloooosssed!"🤣
😂 MacGrüber from SNL couldn't have made me laugh any harder! 🤣
Not to mention, let's say let's say that nozzle has a 1 square inch outlet, putting out 1500 pounds force per square inch... so he's just casually holding 1,500 pounds of force out in front of him like he's not literally bench pressing the weight of a cow!
In the Navy we had a hose TEAM to fight fires, 2 hoses, one person on each nozzle, and 3 or 4 people behind them to control the hose, and we only had about 125PSI.
Oh yeah, and that Asian chick is a Cylon!
This is why I watch the old MacGyver with Richard Dean Anderson
Finally someone hold shows accountable for things that are wrong in them.