Adding a Bathroom to a Home : Waste Line Needs for New Bathrooms
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- Опубликовано: 1 июн 2024
- What supplies are needed to deal with waste lines in a new bathroom? Learn how waste lines factor into new bathrooms, including construction and fixture installation tips with this free home improvement video.
Expert: Dave Pollack
Bio: Dave Pollack owns Dave's Handyman service in Cottonwood, Arizona. He has been doing home repairs for years and is considered a Jack of all trades.
Filmmaker: Chuck Tyler 
Хобби
Thanks to RUclips and my wife's many needs . I'm a "professional" plumber, carpenter, floor installer, electrician, mechanic etc..
Minimum slope for that pipe is 1/4” not 1/8”. You cannot use combos to connect trap arms to a vertical drain. It creates a 3/4” S-Trap. Your weir of the P-Trap has to be below the opening of the fitting. The correct fitting is a sanitary Tees in the vertical position.
Thank you for this explanation
I would have thought that this fellow would have removed this video untill he can do this job right.
You need a quarter inch per foot for 2” pipe. Also both those lines are illegal. When running vertical there’s no need to use combos. You should have used San tees. By using a combo you create an s trap. It looks like the trap is too close to the washer box as well. Also, load bearing or not, you never notch studs. No nail plates on drains. He said that the building requires a 3” vent. That may be true but the amount of drain fixture units for those two fixtures would almost work with 1 1/2, if have to check what a washing machine is.
1) 11/2" plastic pipe is required to fall 1/4" per foot. Not 1/8". 2) other comments are correct. If it was 1/8" total fall would be 1/2" but that's still wrong because it should be 1" total fall on 4' drain arm on 11/2" plastic. 3) cannot wet vent washer over lav. Needs to be other way around to meet code. 4) cannot use combination fitting in place of a sanitary tee. You have created an s-trap by doing so. 4( your illegal s-trap is also crown vented or too close to the stack. Looks like a good effort but does not meet code.
Thank you for uploading. I learned a lot just from this brief video.
You learned how not to do it.
WOW, took a big chunk of of that 2x6.
Stand pipe looks a little small, isn't there a minimum size requirement? That sink drain would have offset further down to leave more room for that laundry sweep combo to be lower.
Amazing how long these threads continue. We here in so cal use sanitary tees and not comby's. The comby cuts off the vent and is not allowed by code in this configuration. The wet venting of the laundry is also not allowed as it is more than 2 fixture units...only 1 and 2 fu's allowed by our code. The trap looks fine as the minimum length between the weir of the trap and the vent take off looks to be more than twice the pipe size, also a code requirement. NOTE...I also concur with another post that drilling here would be paramount. The 2 x 6 now looks weakened. It is possible by the IBC to notch up to 60% if the wall is non bearing, but still need to correct the notching none the less.
The stand pipe for the washer looks short as well...I'm use to CA codes as well.
im in socal as well, near riverside
Can't use combos standing upright . Combos are for clean outs or layed flat on the ground for rough or put flat then rolled on a 45 degree angle to catch another fixture for the gut line . The reason we use combos is for direction to steer a sewer cable to clean a sewer . Otherwise in an upright situation they can cause a siphon like an s trap and suck the water out of the trap . that's how we do it in texas .
Chad is correct you created an S trap using that combo the correct vertical drainage fitting would have been a san tee & you cannot wet vent in that scenario you would have to reverse the lav dirty arm above the laundry & it would have to be 1-1/2" pipe. As I began reading down the page you already know that now.
Jason the Plumber thank you Jason !
+Jason the Plumber I've seen a lot of guys come on here and critique without explanation. Even though I really don't know what you're saying true cuz I'm a newbie something told me this plumbing setup was wrong. Thanks to guys like you who step up.
+gus hardy thanks Gus, I don't like to troll but this guy was way off, I know different parts of the country have their own jurisdiction on codes, but there isn't anywhere this is legal, I don't know maybe third world countries.
1/4'' per foot for pipe sizes less than 4". 1/8" per foot for 4" and larger
When the flow is in the horizontal plane only, long-pattern fittings are necessary to prevent excessive reduction in flow velocity. When flow is from the horizontal to the vertical or from the vertical to the horizontal, a shorter pattern fitting may be used because the acceleration of flow caused by gravity will maintain higher velocities. Low- and high-heel inlet elbows are acceptable depending on the application. A low-heel branch inlet must not be used for a drainage connection where solid waste enters the run of the elbow from the vertical. In such a case, solid waste could enter the branch inlet opening, causing a blockage. Because there is no waste flow in vent piping, and the airflow in vent piping may be in either direction, the types of fittings used in vent piping are not regulated by this section. For example, a sanitary tee placed on its back with the branch inlet connected to a vertical dry vent riser is a common installation practice and is not prohibited. In this application, the only waste flow is through the straight run of the fitting, and the branch inlet conducts only air into or out of the horizontal drain pipe. Sanitary tees may be used for horizontal drainage flow through the run of the tee where the branch of the tee is for venting only and is oriented within 45 degrees (0.79 rad) of the vertical. A sanitary tee can be installed on its back for venting applications in sanitary drainage.
It all depends on what the code is in your area. I leave in Tennessee and it's 1/4" per foot. The work doesn't look that bad, I just wouldn't let my hot and cold lines touch going around that corner.
FYI any pipe 3" and smaller gets 1/4" per foot fall.
Chris Jones Thanks for that very important detail.
Chris Jones 2" and smaller... 1/4 " per ft.... 3" and larger.... 1/8" is fine
@@mattwalden9402 3 " should be 1/4 slope per foot
You should read your codebook... obviously your not licensed
How much would this set up cost in a existing space
i believe you need a 18 inch fall to the ptrap from your laundry box and you could of ran the laundry and sink on the same line as long as it was 2 inch to the laundry then 1 1/2 to the sink
Wow! The pipes should be going thru holes drilled into the studs instead of those big notches.
1/8 INCH EVERY FOOT FOR 4 FEET IS 1/2 INCH NOT A QUARTER.
+randy smith Yeah what Randy said That's right and we are also the spelling police. Good job Randy
LOL
I thought I was crazy at first. TY
@2020starman its a wet vent the line needs to be upsized
Isn't a 3 inch pipe going to make a pretty big hole in a 3x4 wall? There won't be anything left?!
shouldn't the standpipe for the washing machine be more than the approximately 20 inches shown? like 36 inches?
Minimum 18”, maximum 36”, but it doesn’t look like this standpipe is even 18”.
These comments crack me up. All these wanna bes knocking this guys work. He can notch that wall all he wants as it is not a load bearing wall. IRC is 1/8" per foot, 1/4" is above and beyond code and is what is generally taughy but not REQUIRED. I really want all of you to post some informative videos so i can tear them to shreds.
There critical comments are much more informative, read them. This dwv design is awful. Of course you cant see it. I am a licensed Journeyman Plumber in Texas. You are either a handyman hack or just plain ignorant.
Irc p3005.3 says 1/4 inch per foot. Just saying
1/4” for 2” and smaller in both codes I believe
Please read comments below. There are a few things here that will probably not pass inspection in most developed countries.
So. To help viewers understand what the issues are here in plain language. The is both poor DWV design and incorrect.
1) The w/d drain isn't proper/legal. The standpipe (vertical pipe above its trap) is to be 18 to 36 inches in height above the trap. This is to ensure that the washer discharge hose that is stuck into the pipe doesn't fall into the water that sits in the trap. There is a possibility that the discharge hose could suck/blow the water out of the trap. Proper installation would drop its drain T into the stack below the vanity drain. This drain pipe also has to be a minimum of 6 inches off the floor (max around 20).
1a) An S-shape created by the trap and into the stack could create a suction event that pulls the water out of the trap during draining. This is referred to as an S-trap in comments below. Visually, the S shape is horizontal.
2) Using 2-inch pipe as the vanity drain is legal, but poor design. I am positive 2 inch was used due to the horizontal [pipe] distance from the trap to the stack. 2 inch pipe (in my state) can put a trap 60 inches from the stack. 1 1/2 inch pipe (normal sink drain size) requires a dedicated vent a distance where the trap to stack is over 42 inches.
A better DWV design would have been to use a drain / vent loop system. Loop being 1 1/2 pipe for drain and vent. Vent going horizontal at least 42 inches off the floor and over to the stack. The w/d drain could even have a vent and tie into this vent loop...although not necessary being so close to the stack.
3) the "combos" or long-sweep Y that are used on the stack wouldn't be proper and T's should be used.
are u licensed in Texas?
You should make a video. Sounds like you've got your crap together. I'm an HVAC guy just watching this cuz I'm thinking about adding a bathroom but I feel like I could learn a lot from a video by you
All this being said and you never mentioned that you can not put and major dfu fixture over a minor dfu fixture. Such as washing machine 3 dfus and lavatory is only 1.
JW Blount maybe , but is the wet venting situation ok regarding the stacking of fixtures, or is it ok because he was told to increase the size of the vent to three inch ? What does the plumbing code tell us?
I stand corrected it does say in section 406.2 of the IPC that the washing machine branch must tie into a 3" pipe to avoid siphonage on a down stream fixture. Which I miss on the 3" pipe in the video. With that being said the 2" pipe that taking over to the lavatory is now a combination waste and vent. Because an 1 1/4 trap is all that required for a lavatory the increased pipe size lengthens the distance to his required vent. I will now be showing this to my local inspector who failed me a while back on the major over the minor scenario!!!
Wow! I see many errors, 1/4 not 1/8 slope and look at the huge notches in the studs, not Code Kosher.
Davide Giudea not to mention they're using combos to stack vent, and dumping a major over a minor on that stack
William Vogelsberg I caught that too. hes probably not the best guy to learn from.
1/4 inch per foot on a trap arm no matter what size and have you ever heard of a drill you hack notcher
not only that the 3 by 2 comby you used puts the inlet below the wier of the trap which is also illegal
nope. 1/4" per foot fall until you get up to 4" pipe. Thats Canadian Code at least
Wait...if it's 1/8 inch per foot drop and there are four feet....then wouldn't it be a total of 1/2 inch drop? He said 1/4 inch.
I think he said per two feet
Expert: Dave Pollack
Bio: Dave Pollack owns Dave's Handyman service in Cottonwood, Arizona. He has been doing home repairs for years and is considered a Jack of all trades.
im planning putting a bathroom in my basement. when does a person use a sanitary tee and when should they use a wye. i cant afford to pay a plumber to do this. im just a guy trying to get by in life
San tees can only be 45 deg to vertical, the same with a regular 90. Anything 45 to horizontal has to be a sweep (basically a long bend 90 or two 45s) whether that’s a 90 or a combo.
Hold on there cowboy. You wrecked the structural integrity of those 2x6 studs by cutting giant square notches in them for the waste pipe. You even notched on both sides in that middle section, leaving only a skinny nub to hold the wall together.
Next time only use circular holes, and only in the middle of the stud, and no more than half the stud width.
next time use a sanitary tee on a vertical line all combo used for horizontal line!!
code allow the combination wye to be vertical and to received horizontal drain .
@2020starman how?
can't use a combination there, he needs a sanitary tee.
The P- trap for washing machine is to high
Wow
You mean 1/2" on 4'
Wow, this comment section is really old!
While this man seems very mild mannered, his system is not. Please get some training from at least your local plumbing code before you post this info. Most areas would not allow this and I hope there is enough feedback to prove that point. IAPMO and ICC trained and certified.
then automatic washer is an s trap .should be a San tee
I noticed that too. I'm not even a plumber lol
no clean out on the p trap
Yes, they are difficult to get at when covered by sheetrock.
Don’t let this clown do your plumbing!!😂😂😂
I thought it was 1/4in per ft lol....
rickyc2893 it is supposed to be that way, by International Plumbing Code for pipes 2 1/2" and less. 1/8" per foot is appropriate for 3" and larger waste pipes.
Upc code too, 1/4 per foot.
Then he did his math wrong and dropped it only 1/4" over 4 feet lol. Thing might as well be level lol
thats waste... and i think max is 3" per
1/8 x 4 = 4/8 = 1/2 inch, not 1/4 inch as mentioned. Code is 1/4 inch fall per foot, so the correct drop is 1 inch for a 4 ft waste line.
Not to be a bitch....Minimum 24" stand pipe for washing machine. Canadian code.
Another Strange differnence is our vent pipe termination only has to be 6" above flood level/ shingles. Weird cause we get more snow for potential blockage.
4 inch !!!!!
That looks like an S-trap to Me sir, not a P-trap. That shit is going to self-siphon. Get a hole saw...this looks so hack.
R
Skipper?
Two fails in one job. Sink is wet vented and too far from vent. Toilet needs a separate vent. Copper water lines need to be spaced 4" from each other and not in the same notch.
This is illegal and incorrect. Do not follow. Pitch is 1/4" per a foot. Also the vent must be within 2' of the trap. The sink is also not vented because the waste from the washing machine goes into it. Every fixture mush have its own vent not shared
John Flores the sink should be vented between the fixture drain and waste stack, reventing and tying into a vent stack at least 6" above the flood level from of the fixture vented.
nope one vent can serve a whole bathroom dry-vents are no longer necessary, unless you get to far from main drain
Barrett Gold your allowed to do a wet vent
Hey Barrett ..Modern plumbing is easier to fit..such as Pex-Water-pipe..Pro-Press-copper..Drain-line-glue joints..but modern framing leaves little or no access for several vents in one wall..so we combo & wet-vent to keep from cutting or drilling into load bearing walls or micro-lamb floor joist ..we cant butcher the the structure the engineers can make us pay for damage or fire your shop and sue you for repairs..times have changed my friend!
Your gonna dump that laundry on top of that lav. Really?
I'm not professional plumber who knows 100% everything about plumbing, but, buddy, I would never make so much mistakes you did. Just one thing makes me stop the video and start typing the comment. Not good job .
This poster is a hack. Please, please do not follow his plumbing example. The small section of DWV he shows here will lead to overflowing washer discharge and dangerous sewer gas coming into the home. At 3:25 he states "as I read the code". I do not know what code book he has but it is not based on the two main codes in the US, the IRC and the UPC. Neither would allow any of the work he shows here.There are many good knowledgeable comments on this page, read them all especially Mark Obryant's.
Very simple,im so cal plumber, Sant tees are fine,just vertically not on its back. Combi y 45 is for horizontal tie in. This system is a horrible design and lay out. bath room lavy 1 fu toilet 3 fu tub/shower 3fu. Your allowed 2-3 fu on any 1-1/2 trap arm greater overall distance from c/o
Yappricciatre it
Yr laundry needs to be down stream from yr bathroom group.... totally wrong mister
I would not let this guy plum my dog house 5 or 6 things wrong to many to list a California plumbing contractor
WOW! this guy actually showed his face! He's video taping himself giving completely obsurd and incorrect info that will cost homeowners horribly! Its actually on camera!!!! Why would this guy make an instructional vid on a subject he doesnt know about? I see homeowners everyday that have been fooled by these handymen everyday>> its shamefull! he is qualified to be a home inspector!
your doing it wrong LOL
dont make mickey mouse dud
This is terrible. Leave it to the professionals: lisenced plumbers. This system would cause multiple drainage and structural damage problems. You think you save money doing it your self or hiring a hack like this. In reality, you will pay him, pay for the damage, and pay the plumber and other trades to do it right.
Your drain lines are illegal, those must be tees, not wyes! When u use a wye in that situation u cut off the vent. And u want 1/4 inch per foot. And you never dump a larger fixture over a smaller fixture. Washer is larger than the lav. Should have caught the washer first. U should not be teaching plumbing. Everything u have done is wrong. And the reason I dont dump a larger fixture over a smaller fixture is because it will suck the smaller fixtures trap dry.
TK, quick question. Im having a house built and at the foundation and walls are going up. I was looking at all the areas where all the sinks and toilets will go. Every sink and toilet had its drain, but in one bathroom there was no drain where a sink should go. But just to the right of the sink is a vent for a toilet. My question is. Would they just tie in the sink drain thru the wall to the toilet vent? Hope that makes sense...
@@fencerider1492 yes that vent for the toilet will become the drain for the sink and will vent both the sink and toilet
Perfectly legal! Hope that helps
@@fencerider1492 and to go a little further the sink drain has a lower fixture rating than the toilet. That's why you can dump the sink over the toilet! Have a great day
@@t.k.2369 Thnks abunch sir, and have a good weekend.
Sorry pal, you lost me at an 1/8" per foot at 4' equals a 1/4"... Better luck next time
Buy a drill, all the holes are notched, poor workmanship, and those y's should be ty's.
its all wrong! rip it out
Save your name and quickly delete this video! Go get your license too!