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Aeroponic Growers
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Добавлен 8 мар 2019
Aeroponics is the future of farming. We don't have the land and water to continue traditional farming and urban gardening is exploding. Cities and towns are growing their own food and neighbors are selling their produce. Indoor growers created the demand for company's to create innovative products. And now is the time to begin learning how to grow a lot more using a lot less. If you live in a city carrying soil up stairs isn't fun nor discrete, but with aeroponics once your system is built you only need to buy nutrients online or at a store. True high pressure aeroponic parts are easily available online and why we don't sell products anymore except the AeroBox 2. All videos and images that contain information about cannabis are for educational and entertainment purposes, know your local laws. Images and video were done legally in Massachusetts at a private residence following the local 6-12 plant limit for adults over 21.
True high pressure aeroponics cannabis and low pressure aeroponics in white containers grow
This is an old grow, you can tell by the old LED lights! The back part I used high pressure aeroponics. I hooked up a larger solenoid with pvc because I thought it would be better to have a larger output. Nope it was bad. Every time it would open the pressure would move the pvc pipe. I never did a setup like this again. Now I keep everything to 3/8th and 1/4” OD tubing. Notice how high pressure ages the plant quickly and that’s why they are miniature trees!
The white lids are low pressure aeroponics. Notice how bushy they are? They grow just like hydroponics. The LEDs I got all off Amazon and the back I had a ceramic metal halide 315.
The white lids are low pressure aeroponics. Notice how bushy they are? They grow just like hydroponics. The LEDs I got all off Amazon and the back I had a ceramic metal halide 315.
Просмотров: 420
Видео
A small hybrid hydroponic soil grow indoors 2x4 tent. Easiest way to grow Cannabis in small space.
Просмотров 2,2 тыс.2 года назад
So I built a small hybrid soil hydroponic system so I could be gone during the holidays. With a True HPA system leaving gets me nervous. That being said the harvest was great, I didn’t measure it but it’s fire! These are “City Picker” boxes. Nobody buys them and they get marked down under $30 dollars. They worked great for what I wanted but now I have to find a place for the soil in the city. T...
Mister nozzle setup for a TrueHPA aeroponic grow chamber. True high pressure nozzle idea.
Просмотров 6 тыс.2 года назад
So over the years finding a solid misting system is always a constant challenge as technology grows though it’s getting better. This is how we setup our mister nozzles at Aeroponic Growers. A 1/4” OD push fit stem tee to a 90 degree angle push fit to 1/8th” FNPT opening. We screw the misters into the threaded opening. Mounting the tubing on both sides is important and you may need to get invent...
How I use an air filter and AC to eliminate smell with an indoor grow.
Просмотров 2,1 тыс.3 года назад
This is how I set up a grow tent inside a bedroom when I want the entire room to not smell like weed but utilize all of the space. I simply have a very large charcoal air scrubber sitting outside the tent essentially removing the smell from the entire room. I want to do other things like drying, trimming or keeping a mother plant and a couple puffs. If I’m only scrubbing the air from the grow t...
Smaller True HPA System Parts Setup. Using tubing, PVC, Hose Clamps & push fit fittings.
Просмотров 4 тыс.3 года назад
When we first started making systems with the resources available to us we couldn’t find much in the ways of quick fit or push fit kind of fittings. So we had to use hoses, clamps, PVC etc. People have asked how to better set up a system using these parts so I dug out some old ones to hopefully help some people out. Hoses can be a headache and even PVC. Now big hardware stores sell quick fittin...
True HPA system parts. Quick overview of how to assemble a high pressure aeroponic system.
Просмотров 20 тыс.3 года назад
In this video I show exactly how the parts are assembled to create everything needed before your root chamber for a true high pressure aeroponic system. We are selling True HPA parts again on our website www.aeroponicgrowers.com Understanding the basics of the parts needed and which direction they go together will help you in developing your own aeroponic system. #TrueHPA #aeroponicgrowers #aer...
How I make a TrueHPA aeroponic root chamber using a storage box. Aeroponic grow chamber only.
Просмотров 3,6 тыс.3 года назад
One of the first systems I built years ago using a 64 gallon tote from Lowe’s. I stopped using them because they are too expensive to ship but people who buy the AeroBox 2 make their systems like this. Also this is a brief overview for people who want to see how to make a true high pressure #aeroponic system. Lately I’ve had people buy a pump but don’t use an accumulator tank, this is one of th...
How I make a basic - True High Pressure Aeroponic "Small" DIY Root Chamber
Просмотров 65 тыс.3 года назад
So this is a simpler version of how I build a very basic True High Pressure Aeroponic root chamber. This video focuses on the root chamber, using a 27 gallon storage tote. People use these totes commonly as they are cheap and easy to make. Don’t expect huge plants, but I use a SCROG net to help support the plants making them grow larger. I actually give away some tips and tricks never shown bef...
How I drain my aeroponic system using a booster pump, tank valve and tubing. Aeroponic tips & tricks
Просмотров 1,9 тыс.4 года назад
Using a high flow booster pump "we now are selling Aquatec pumps" I demonstrate how to drain a high pressure aeroponic system. First I close the tank valve, second the reservoir valve and third open the return valve from the system. Once I open the drain line the pump turns on and begins removing the left over nutrients within my system. Once drained, close drain line and open the valves again ...
The All New HLG 650R Scorpion Series First Ever Design LED Grow Light for small ceilings.
Просмотров 2,1 тыс.4 года назад
When we first did this video prior to the release of the Scorpion no real life testing had been done. We haven't heard much of positive reviews and we have found that ppfd readings fluctuate largely between lights. This is another first ever design by Horticulture Lighting Group and it’s a game changer. Now you can put the equivalent of 1000 watts on your canopy at only 12 inches!
We now have over 100 subscribers & thank you for getting us there!
Просмотров 1324 года назад
We don’t always have a chance to thank everyone who follows us but it means a lot to us. We don’t claim to be experts but are willing to share our failures and successes as we go along trying to build the ultimate Aeroponic System. Much thanks from #AeroGrowers and we look forward to helping you with your Aeroponic endeavors!!
Slucket Aeroponic | Prototype Video
Просмотров 1,9 тыс.4 года назад
This video is private and please only share the URL amongst us until the system is released.
Slucket Animation video
Просмотров 7944 года назад
Just an animation of the all new Slucket Aeroponic system
Aeroponic Growers 2020 True HPA Aeroponic System for growing large plants.
Просмотров 2,2 тыс.4 года назад
So I had to go back to the original design of The True HPA System. I liked the double barrel design but two misters in one bucket was overkill and made hydroponic roots. This is the current #TrueHPA system that you can buy now at Aeroponic Growers! #aerogrowers
Another True HPA System by Aeroponic Growers get an aeroponic system made to grow large plants!
Просмотров 1 тыс.4 года назад
Another True HPA System by Aeroponic Growers get an aeroponic system made to grow large plants!
Do you want the best hobby LED grow light proven in 2020? Then check out the #HLG225 LED Grow Light.
Просмотров 2554 года назад
Do you want the best hobby LED grow light proven in 2020? Then check out the #HLG225 LED Grow Light.
Adding a HLG UV bar to a HLG 650R Diablo LED Grow Light. Replace a 1000 watt metal halide.
Просмотров 4,5 тыс.4 года назад
Adding a HLG UV bar to a HLG 650R Diablo LED Grow Light. Replace a 1000 watt metal halide.
How I germinate and start Cannabis seedlings in a TrueHPA system. A cloner in a 5 gallon bucket.
Просмотров 12 тыс.4 года назад
How I germinate and start Cannabis seedlings in a TrueHPA system. A cloner in a 5 gallon bucket.
How to Assemble The True HPA System
Просмотров 1,4 тыс.4 года назад
How to Assemble The True HPA System
Unboxing the HLG 650R Diablo Commercial LED Grow Light Engine. The most efficient LED available!
Просмотров 1,3 тыс.4 года назад
Unboxing the HLG 650R Diablo Commercial LED Grow Light Engine. The most efficient LED available!
How I cure my Cannabis buds all the way through burping them in mason jars. Detailed instruction.
Просмотров 5 тыс.4 года назад
How I cure my Cannabis buds all the way through burping them in mason jars. Detailed instruction.
The reason behind using a SCROG net for growing Cannabis indoors with Aeroponics.
Просмотров 4214 года назад
The reason behind using a SCROG net for growing Cannabis indoors with Aeroponics.
Build an affordable SCROG screen for Cannabis with PVC, screws & string. DIY SCROG net.
Просмотров 15 тыс.4 года назад
Build an affordable SCROG screen for Cannabis with PVC, screws & string. DIY SCROG net.
How I use to build aeroponic chambers out of a Lowes 64 gallon "Commander" tote
Просмотров 6684 года назад
How I use to build aeroponic chambers out of a Lowes 64 gallon "Commander" tote
True High Pressure Aeroponic Equipment For Explosive Plant Growth
Просмотров 8344 года назад
True High Pressure Aeroponic Equipment For Explosive Plant Growth
How I Build a TrueHPA High Pressure Aeroponic System. Detailed Instructions, DIY Tips & Tricks
Просмотров 20 тыс.4 года назад
How I Build a TrueHPA High Pressure Aeroponic System. Detailed Instructions, DIY Tips & Tricks
Aeroponic Growers HLG 360 ELITE LED GROW LIGHT ENGINE
Просмотров 2374 года назад
Aeroponic Growers HLG 360 ELITE LED GROW LIGHT ENGINE
Aeroponic Growers 5 Gallon Reservoir Overview
Просмотров 2074 года назад
Aeroponic Growers 5 Gallon Reservoir Overview
Can't we put the seed directly in the neopren collar and germinate it there?
@@Haramius2009 sounds good in theory, make sure it gets rid of the shell and doesn’t choke on it.
Bro please helpe whit timer , what timer is this? I am from europe ..too program 3sec on and 3-5min of
@@ionitaromel-georgian8925 I use Nearpow timers.
Any timer with Shortest time interval is 1 second
Perfect! Thank you!
slick setup
@@joeymetallo thanks!
@AeroponicGrowers How hard is it to switch one of these from 240 to 120
@@tylerlarson5205 just call HLG and ask, they’re cool like that.
I have a mistaking ultimate pump which can run 24 nozzles at 125psi. What is the reason for the accumulator?
@@AffinityPhoto the accumulator tank is so the pump can shut off and let the passive energy inside the tank continue pushing out nutrients until it reaches a lower pressure triggering the pump to turn on again. Saves on electricity, heat and equipment. Plus a pump builds up to pressure each time the solenoid opens and produces different sized droplets. The tank has a lot of back pressure ready to give a consistent droplet size each time the solenoid opens.
Hello, if I use the accumulation tank, how often and how long does the pump work per day?
With the accumulator tank the pump is only going to turn on shortly for less than ten times a day. But that’s a ballpark figure because it truly matters on how much liquid your using on the other end. With 1-3 seconds of spray going off every 3-5 minutes you’re not going to go through a 4 gallon accumulator tank in a day. The pump will turn on to keep that 80-100 psi consistent but it’s not for long.
How could i drain the pressurized tank with this system?
Have a tee setup with a valve between the tank and the solenoid. Open the valve slowly and drain the tank. Make sure you have a pressure relief valve somewhere on the tank if you can.
The pressure tanks are mostly rated for 100 psi did you encounter any problems running that 200 psi pump?
I don’t run the tanks higher than ~100 psi. The pressure switch is at 80-100 psi so the pump shuts off. I think most tanks aren’t even rated for 100 psi…. Oops 😬
why do you keep solenoid within 2 feet? can you please explain
It keeps the pressure inside the tubing consistent when it opens. It’s more for when using multiple solenoids. Plus that tubing is warming up the nutrients to room temperature while they sit. Someone taught it to me a long time ago and there may be more significance to it than what I’m saying. If I remember correctly I will come back to this !!
@@AeroponicGrowers Thank you for replying, I understand now. You got a Sub from me eagerly waiting for more of your uploads.
@@Ovrlord_1 I need someplace large to do more projects!
thanks for coming back! your videos are helping me to set up my HPA system.
Cool!!😎
Thanks for sharing all your content about Aeroponic, i’m making my own High Pressure System with all the videos and subject i found and mainly from you ;) I learned there is no perfect way to go, i wanna keep my pressure level about 80 PSI Max because more would use a lot more the component mainly with 150 PSI water pump and also use a 60 microns pre filtering maybe less and can be washable to prevent the 5 Microns Sediment filter, i maybe use a bad company filter but i rather think 150 microns bag is not enough for me ( my sediment filter last 2 months and then no more for a 6 month life use ) also i used Advanced Nutes and additives with also coco medium in small net pots. The nozzle are also a bit difficult to find the ones who last « forever » i would say Tefen Nozzle but wanna hear what you are using in HPA. Cheers
The nozzles Tefen uses are an old patent that any nozzle company can make. They just don’t advertise them. But you have to buy a lot of them usually. I wouldn’t use a 5 micron filter with any nutrients because that’s just too small I find. It’s good for clear water. I might of used one in this video, if so you don’t need it.
Thank you very much for your answer, i figured out a bit later my comment that indeed Tefen nozzle are outdated and i heard some got bad adjustments in the series process Maybe 10 or 20 microns would be cool enough to let minerals solutions going through without clogging really fast I searched also for Air Atomized Aeroponic as it’s more effective, and the nozzle are more tolerant since the holes are bigger even if it need some filtration, i would like to do dual fluid and test some variations of air/water pressure sets, what your ideas/experiences on that?
@@jay-dbringolo1176 watch my videos on air atomized nozzles. They’re the best way to go for precision and getting “true high pressure aeroponics” because of the air and liquid combination. Versus just spraying nutrients into the container. I went on a journey finding a small and quiet enough air compressor for a bedroom. The best was a home brewing compressor. California air was a good compressor until it broke quickly. I just ordered the head of the nozzle and not the mounting hardware to save some money. One nozzle can be $60-100+
Hey, thanks for your time for answering 🙏 I honestly had to wait a little bit before purchasing all the things for HPA, i got some problems with cheap nozzles at the beginning then i had problem with the automatic switch on the seaflo pump which is not owned anymore by this company but rather a Chinese one, on the box i got a bypass but on the pump inside you clearly see it’s non existing, then order new 12v switch, it was the same shit, no easy to find, like it’s outdated, the funny thing is that even with decent 230V switch i got a serial error on the mobile 1/4 Female entry which is not sealed properly, it’s leaking water very easily above the nut lol, even if I understand well the concept i can’t give anymore credits to it, i make clones with different set up and it seems DWC is better suited for me, HPA is good but it lack oxygen, when i look at the price of AAA it’s quite fair, one Vevor compressor 9L and oiless and some fitting with a nozzle ( I find for example one for 30 bucks) but you know Aliexpress it can be good or bad :) The idea is to have a single nozzle that spray just the time it need to carefully protect the compressor and to carry enough moisture in the root chamber. I know Siphon nozzle use quite air per minute so don’t wan’t to heat to much my gear as it seem to be the weak spot of this technic. Thanks again ;)
@@jay-dbringolo1176 I’ve blown up a few seaflo pumps! You have to put a check valve after the output hose. They can’t handle the back pressure and the seals blow.
thx mate, just starting with aero. the only video i found that doesnt involve rockwool o.s. xD
No problem! Have fun
No recirculating liquid?
No this is not showing a recirculating system. My other videos have recirculating systems in them.
Make another video focus on the drainage I don’t understand how it works with air and liquid on the drainage hole
This video is just how I build the chamber. You can have it drain from the bottom or the side. You’re right you want to have liquid on top of either fitting before you draw from it if you’re recirculating it. I mainly do drain to waste. I only spray a small amount of liquid with little left over each day.
Risking breaking the root.. we need a gentlier method
You can make a mesh or screen of sorts that holds the seed and you don’t have to touch it.
Where can i buy system from you? your website is not showing..
I haven’t been selling systems lately but when I do I will definitely let you know. Thanks for asking!
Thank you for sharing mate looks great
Thanks man!!
🎉🎉🎉
Cool!
Thanks! It’s from the old house
I'd love to see more content from you 😊
Wish I knew where you sourced your nozzles and fittings and all that.
I use TEFEN nozzles and get reverse osmosis fittings off Amazon.
@@AeroponicGrowers Thanks.
You can use gorilla duct tape to light proof your lid and only put it on the top nothing inside no risk
Good idea thanks! Paint no matter the kind eventually flakes off.
Perfect way to start media-less bare root mother for RDWC!
Absolutely!!!👍
That trick at 3:00 is going to help me so much, I was indeed breaking my head over this, thank you!
No problem! Watch my video on how I make one with a threaded elbow and mister tee
why do you need the stem tee? just put a short piece of 1/4 tube between a compression tee and elbow.
That works as well. It’s just bulkier and more time consuming.
No longer a website? where can one go to learn more? how many large totes can you set up with the one air pressure tank? does all the equipment (on the tote there) have to be duplicated per tote? Wondering about a pvc/ez clone misters to spray roots with a submersible pump and hydroponic nutrients in the bottle. the water is pushed up or down depending on the height of the pvc. Then it combines the two and you only need the sub. pump. Will that setup work?
You can use one pump for your system and add more accumulator tanks as you need them. A lot depends on how you build your system and everyone builds theirs differently. The setup you’re talking about sounds like low pressure hydroponics and will work fine. And they work best for small grows. Good luck!
How often do u give the plants uv light?
I give it to them all the time. But it helps best obviously when budding.
Could you use an Aquatec Pump in a bedroom? Or it would be too loud? Cheers
Yes you can! It’s super quiet.
why you need Pressure for siphon fed ???
Siphon fed means it’s grabbing the liquid when a suction is formed with passing air. Versus the liquid being pressurized behind a solenoid that opens and closes combining with the air.
@@AeroponicGrowers yes ! But why u need 10psi liquid pressure when nozzle can drain it self?
@@eseehome6608 I wrote it wrong. As you can see on the water gauge it’s at 0psi. So the 10 psi shouldn’t be on there. Thanks!
3:30 he said 1/8” tap and die 27p, did he mean 3/8”?
It’s 1/8” tap
Which pump is the quietest? And do you carry it?
Go with an Aquatec 115psi. I don’t sell parts
Thank you.
No problem!
How many sprays of 3 seconds will the accumulator do before the pump kicks on to pressurize the system? Thank you so much for the info!
It matter how many misters are spraying for 3 seconds. A 4 gallon accumulator tank holds around 3 1/2 gallons of fluid and that can take a couple hours or even a day to refill.
You simplified a lot with an incredible didactic. Thank you very much, without this video it would certainly take me days and I wouldn't be able to understand it so easily... thank you very much!
No problem!! Have fun!
Is an entire kit available? With the tank and pump?
No this is a DIY video
good video. i need to do my cure super stealth, and fast as i'm in an illegal state. i found an old car that is still water tight inside i plan on drying, curing my buds in.
Gotta think outside the box! Nice move
did it worked well in the car ? :)
Would this be adequate for a cloning setup misting 24/7?
If you’re misting 24/7 you will get hydroponic roots. This nozzle produces a lot of mist and could do a 2x4 foot container by itself.
I have a rdwc system with pots I could easily modify it to Aeroponic. How much pressure do I need to connect X nozzles/pots?
I don’t understand your question?
@@AeroponicGrowers how much pressure does the pump need to operate numbers of nozzles. For example let’s say if I had 150 nozzles in a 100 feet line I assume a 50w pressure pump has not enough power to get the desired mist out of all the nozzles.
@@oe5580 it comes down to how many accumulator tanks you use or how big. The smaller the pump the longer it takes to fill up the tanks. A bigger pump will fill them quicker. These tanks release the pressurized nutrients at a steady rate while keeping the pump from running continuously.
What's you web site for parts please
I don’t have a website or sell parts anymore
Awsome way to do it ! I imagined you would tell the same idea as mine (which is drain also but...)... but nope. I (CLAM IT haha xD) came up with this idea: Reservoir is sealed (using just a submersible circulating pump instead of airstone) Have 2 air/water proof bulkhead connections for the reservoir 1 for feeding (standard setup - at the bottom if needed) 1 for the auto pressure equalisation (at the top and not dipping into solution) * Have "drain-to-waste" container, sealed. Have 2 air/water proof bulkhead connections at the top * Lastly have your root-chamber drain spot-on for suction (or tube touching the bottom where waste accumulates) Connect root-chamber drain to "d-t-waste" container. Connect "d-t-waste" container to Reservoir top. * When ever the Pump works, the reservoir pressure will change it will become lower than the root chamber which is normal (does not need to be air proof) The accumulated waste will be sucked in the "drain-to-waste" container and all sealed containers/reservoir will be pressure equalised again. I'll try it my self when I can, and tell you about it. It's for micro grow space if we can't drain under the root chamber.
When you first put them in the jar do you put a humidity pack too? Or just weed alone till fully finished?
Only weed by itself with a gap of air at the top. Your goal is to get the moisture from the stem to go into the bud slowly.
Lately I’ve been taking the big stalks and after they dry for a week or so I put them in a 10 gallon covered tote. I do that for a month then the jars!
Do you use this system much? Does the drain system work well? I've been racking my brain on how to setup my recirc setup, and debating vs pump like this or gravity with 4 inch bulkheads. Does the 1/4 clog with roots?
This is a good system for growing 4-6 plants about 2-3 feet high. I don’t use this system anymore unless I’m making it for clones. I find the bigger 64 gallon commander totes with the hip roof the best. I don’t do aeroponics in small tents anymore because controlling temps is too much of an issue. I do drain to waste, so my roots are stuck to the lid of the container and around misters by the end. The 1/4” will clog. I’ve used screens before to hold roots off the bottom of a container.
Love your videos...I am wondering about your drain. Are you pumping the drained water back into the reservoir? I am confused because if, for example your drain is 10 inches above ground, to drain with gravity, you would have to have the water level in the reservoir lower than the drain.
I mainly due drain to waste. It takes a couple days for the liquid to build up and then I just drain it out. In the beginning when your making the clones and first roots, you can use the bottom of the grow chamber as the reservoir. Have the drain tubing go to the input side of the pump. Some of my other videos I show how I put valves inline to suck out nutrient’s and put them in reservoirs etc. Whatever level of water you have in one container will equal the same height in the other container if there are no valves holding the water. If my container is 10 inches above ground I can only drain around 9 inches into a reservoir. Learn drain to waste so that you’re keeping everything going one direction and sterile. You want your roots to be like a sponge full of water if you squeezed them but not dripping wet. I get roots growing on the lid and sides, they will find the water. When people leave to much water on the bottom the roots shoot down and become hydroponic roots. You want really bushy root balls.
Thank a LOT for all your videos, they help me so much
Hey no problem and good luck 👍
what kind of timer are you using?
NEARPOW recycle timers
How many 5gal buckets could you spray using just one of these systems? I have a 40x16 flower room I would like to be able to use this method on.
I would say 4 buckets of you’re using 2 nozzles per bucket. I had a lot of difficulty with making 5 gallon buckets into HPA. The buckets heat up fast. But if I just ran the system low pressure it worked.
@@AeroponicGrowers Why would the buckets heat up?
@@MrLeonfs since they don’t have a lot of space for air inside the outside temps in the tent or grow room rapidly increase the temps. If the roots are touching the sides they heat up fast too. I went as far as running a chiller on the nutrient line but they heat back up again waiting inside the tubing to spray. The bigger the container the more room you have for variables.
This guy has the vocabulary of a six year old.
Hey there, if you want to recover the excess water from the mist, how do you build the system back into the tank? Would Air be a problem? If so, how do you prevent it from entering your system? Thx
I use a “bulkhead” on the bottom of the container with the container lifted so the water will drain. Or on the side and have it lifted in the back so the water flows to it. You can get creative with how you want that water to go back into your system. You won’t get air in the system unless the pump has a chance to suck it in. Watch my other videos for ideas. I use the same pump to suck out the water in the system and return it to the reservoir, you just need to set up valves to open and shut different sections so air doesn’t get it. It’s a really big question with a lot of different answers!
@@AeroponicGrowers its a very complex but fun subject. Ever wondered about giving online help? I'd definitely pay for advices
@@AeroponicGrowers do you have any email i can contact you with?
@@salimmalulek yah I use to help people on the phone and online but its difficult not being there.
@@salimmalulek aeroponicgrowers@gmail.com I’m lazy about checking it!
where can i buy these booster pump?
They are all over the internet. Get an Aquatech 115psi head with a pressure switch. I’m using diaphragm pumps
I recommend Water filters direct. That's who I'm going through
Why did you switch to a diaphragm pump? Which pump are you using and what psi does it deliver?@@AeroponicGrowers
@@robbchristensen1151 I’ve always used diaphragm pumps they are the most affordable. I use an Aquatec 8800 pump but with 160 psi max head rather than 115 psi. I recommend using the 115 psi head since most equipment you will use is not rated for 160 psi. You don’t want a 160 psi filled steel accumulator tank to blow off the line, even 100 psi can be dangerous!
Just one question do you combine a water pump and booster pump? Do booster pumps works even there's no intial freeflow?