Stop using airstones!! Use a $2 venturi instead!

[@mainakaibere9067]

Thank you for sharing your work. I replicated it for a client's koi pond and it's working beautifully. From Nairobi, Kenya

[@SaludaGradeFarm]

Very very cool! Thanks for sharing!

[@DEXTER-TV-series]

@@SaludaGradeFarm Your video was stolen: Вот это Аэрация ПРУДА с помощью трубки вентури | ПРУД ПРУДИ

[@Amadea1977]

You da man! Perfect. The best and most simple design I've seen online yet!

[@SaludaGradeFarm]

Thanks brother! Glad it helped!

[@juanrodriguez-acosta2671]

Thank you for the simplest, cheapest and functional venturi sistem in the Internet!!! I saved hundreds of dollars in my tilapia farming in Dominican Republic.

[@SaludaGradeFarm]

That’s awesome! Wish I could see your talapia setup!

[@Holodomor4.0]

Thankyou for sharing with us your setups and your innovative methods of aeration etc. You're probably the most concise and helpful KZbinr that is DWC/floating raft style related hydro grower I’ve come across to date. Coming from another fellow hydroponic enthusiast from Australia, Thankyou and take care!

[@SaludaGradeFarm]

Thanks for the kind words! Glad I was able to help, I couldn’t find a lot of the info that I have learned so I figured I’d share!

[@burnerjack01]

"Simplicity is the art of engineering." You sir, are an artist.

[@SaludaGradeFarm]

😆 thank you very much John!

[@normansiegel6637]

Thank you so much for a very simple, clever venturi design!

[@SaludaGradeFarm]

You're very welcome!

[@slaplapdog]

I love this! I will be adding a cheap solar power fountain to a barrel pond, for aeration. I was worried about increased evaporation, but this kind of venturi will allow me to aerate, with a water pump, without disturbing the waters surface.

[@SaludaGradeFarm]

Glad I could help!

[@freshimpactco.8698]

Thanks for sharing this. This beats other designs out there and is simple to implement

[@SaludaGradeFarm]

It’s really been helpful to me, the only other option was to put down a 40-50 air stones, and I didn’t like that option, so I came up with this 👍glad I could help!

[@ji1044]

Thank you for the great idea, saved me a lot of money. All the best

[@SaludaGradeFarm]

Thanks!

[@wingnut2893]

Put a bit smaller sized tube on the output side. That will enhance the ventury effect even more. One and a half inch in length will do. Because of the smaller diameter, the water will have to go faster, and therefore, it will draw in even more air.

[@SaludaGradeFarm]

👍will try this next time!

[@rossmortimer7004]

@@SaludaGradeFarm We used to reduce the water pipe to a smaller Tee and then increase the pipe again on the output. This creates the water flow to increase creating more suction of air.

[@nicod974]

I used to use venturi systems with small airpumps to actually mitigate algae build up, drip watering and keeping the water cool... But your diy system is nice👍

[@SaludaGradeFarm]

Interested about the air keeping algae away, do you know why?

[@alexyanker3059]

Thank you ! Your design helped cure my wife’s cancer! You are a true life saver!

[@SaludaGradeFarm]

I pray for you and your wife 🙏 bless you for taking care of her, and I hope she has a speedy recovery!

[@chris_schenkel]

Bullshit

[@cs7717]

During the speed up part, my brain kept hearing you say at supersonic speed, "anyway." Lol

[@SaludaGradeFarm]

Lucky I sped it up 😂

[@mikedoingmikethings702]

Awesome! I learned another great idea today! With that, you earned my sub!!!

[@SaludaGradeFarm]

Awesome! Thank you!

[@pchykins6680]

You don't need airstones to "oxygenate" water...WHAT YOU NEED IS LOTS OF WATER SURFACE MOVEMENT...so a high flowing pump where the water sprout is level to the water surface is enough to move the surface of the water constantly...or you can use a DIY sprinkler...

[@SaludaGradeFarm]

True that! I use a water fall method under my nft channels in the reservoir, watch out for algae using this method though! Cheers!

[@antiqe4286]

So just waves that touch all waves of the reservoir?

[@Aiken47]

💯 to many people think the bubbles add oxygen - but its their movement - I do like this though for breaking surface tension though

[@bcarroll03]

​@Aiken47 surface area and turnover add oxygen, bubbles add surface area

[@Lwimmermastermetalart]

Oh heck….bubbles just look neat too 😃

[@daddy1571]

I install piping to science labs in universities as a commercial plumber. An engineered venturi involves say a 3/4" tee,then 4-5" further you add a 3/4" 90°. If the line continues then you just add another 3/4" tee the same distance apart. You pipe both lines going to the same location but in the beginning of both lines you install 3/4" X 1/2" tees. You glue in a piece of 1/2" pipe to join both lines together in the beginning section. This is a scientifically engineered venturi. We usually use schedule 80 pvc or sometimes schedule 80 cpvc. Interesting vid.

[@MrRobertjparsons]

This design works for a larger pump, for smaller pumps just bring venturi closer to the surface as it can't draw air down that deep.

[@SaludaGradeFarm]

I use a 2” pump with 5000 gpm for my main system, it actually does quite poor deeper than a couple inches. My smaller system use a 3/4” venturi with a 620 gpm pump, they won’t great at 8” but cannot go any farther than that.

[@MrOntorius]

I like this idea I actually thought of this the other day of how to make bubbles under water and I was thinking of reducing reducing reducing now I see how it's done just by making a simple cut I will def be using this to save money no need for aerator

[@SaludaGradeFarm]

Plus it adds circulation and it’s simple and low maintenance, not perfect, but it’s been pretty amazing, thanks for your support!

[@normski4ash]

The simplest things in life are genius ! Thnx for sharing ...

[@guyh.4553]

Very interesting. But you failed to show how it was connected to a pump, singlely or in a series.

[@Wilbarrow]

Try using a street T. Air comes in on street side should give you a smoother and increased air flow.

[@SaludaGradeFarm]

👍thanks for your input!

[@ChrisCraigie-oi1un]

Great presentation. Keep up the great work.

[@SaludaGradeFarm]

Thanks!

[@TealStarLight5]

Could I sand down this PVC pipe schedule 40 for long-term use in my freshwater goldfish Aquarium? Or will it leak toxins after sanding?

[@SaludaGradeFarm]

Good question, and I am by no means an expert, but considering pvc pipe is frequently cut and used in potable water plumbing, hydroponic, and aquaponics all across the world one could assume it’s safe for fish. The main thing I have heard is just stay away from flexible pvc as it has plasticizers in it. Also, this is quite common in aquariums, most of the people viewing this video are using this idea for aquariums and koi ponds 👍 hope this helps!

[@MrNesvideo]

Thanks for the video ! Very detailed and well Instructed ..

[@SaludaGradeFarm]

Your welcome!

[@thomasg4324]

*SUGGESTION:* *Placing the air inlet right before the pump impeller allows the bubbles to get smashed down in size...leading to far more oxygenation of the water.* Large bubles quickly rise to the surface, and this elads to less oxygen getting absorbed into the water.

[@ErikAnders]

i tried that and some pumps die out and quit pumping when any air is introduced.

[@thomasg4324]

@@ErikAnders *I use a 1/4 HP submersible pump, and a 1/5" poly tube......My water is so oxygenated it turns milky white with almost zero bubbling at the surface.* The bubbles just hang in the water and my fish only need it to be on for 30 minutes a day. I don't remember the brand of pump, but I'm sure any sump pump would suffice. #PraiseJesusChrist

[@SaludaGradeFarm]

Interesting, I have tried this with no success, but I’ll try it again.

[@Humbulla93]

​@@thomasg4324best way to oxygenate water is with a schauberger funnel, it's used all over the world for various applications

[@me1assassin]

Basically aren't you 'cavitating' the pump impeller? This increased cavitation usually kills a pump. Not saying it is, just saying cavitation is something that is generally avoided. If it works it works.

[@larryd1296]

I love the vice mounting method!!!

[@SaludaGradeFarm]

😆

[@DuaneTheOakHirst]

I love the old vice!

[@SaludaGradeFarm]

Thanks brother! Maybe I’ll get some lag bolts for it one day 😎

[@BenSmith-cm8oc]

Awesome. I suggest a miter saw

[@CarlosAlberto-ii1li]

You should start your own workwear brand too, it culd take off big time.

[@SaludaGradeFarm]

😂

[@yakut9876]

That sounds good. But what does all of this have to do with “no moving parts” in the thumbnail ?

[@jamaeld.9074]

Great work❤❤❤, is this make more oxygen or create additional oxygenated?

[@jangrewe]

Neither. It mixes air into the water.

[@SaludaGradeFarm]

It increases contact area between water and air. This increases the dissolved oxygen inside the water, so the plants/fish can breath better. 👏👍

[@jamaeld.9074]

@@SaludaGradeFarm thank you so much for enlighten me.❤️❤️❤️

[@MetaView7]

That's brilliant ! Thanks for sharing.

[@SaludaGradeFarm]

Your welcome!

[@AnkurSethi108]

Great design! Will introducing so much restriction to the water flow cause any issues to the pump?

[@SaludaGradeFarm]

These pumps are centrifugal, and designed to work against restriction. I have several pumps that have been running 24/7 for years 👍

[@PhoenixDown99999]

Moving air is easier than moving water as far as energy consumption goes. However the same principle applies in reverse.

[@SaludaGradeFarm]

Probably, but what you don’t realize is how massive a system of airsotnes would have to be to aerate a 10x80’ pond. The cost would be tremendous, and the air pump would be large and noisy. I use a 200 watt pump, that’s it! The added benefit in my setup is the circulation added by the water pump too. Good luck!

[@GreymsView-ix8yi]

A very informative and descriptive video my friend.

[@SaludaGradeFarm]

Many thanks!

[@RichGault]

Good info for those of us still researching and dreaming. How many of these Venturi systems do you have throughout your DWC pools? I live in Orlando, Florida but grew up not to far from you in Gaffney, SC. Would love to stop by someday when we are up there to see your layout and pick your brain. Thanks for the videos. I really do enjoy them.

[@SaludaGradeFarm]

Thanks! I use 3 or those 1” units that I’ve made with a 5000 gpm pump. I may need to upgrade the pump a little bit because it aerates a little less every time i added a Venturi. PM us on Facebook @saluda grade farm.

[@Rick-the-Swift]

@@SaludaGradeFarm Ha, I think you meant a 5000 gph pump. A 5000 gpm pump would bust those little pipes, then probably knock a whole in your wall😄 I like your design, but my first thought was you are putting a lot of load on that pump and likely decreasing it's strength and life span. Perhaps just adding an aerator pump may be cheaper in the long run. Idk, just a thought. Thanks for sharing your work!

[@cogentdynamics]

Steel toe boots around that vise please! Particularly when “wollering” stuff out. 😂

[@SaludaGradeFarm]

Thanks for the advice my friend! I did a tour in Hawaii and have not been able to break the “slippas” habit!

[@foipa1]

The “side” of the tee is called the “Bull” of the tee, the pass through is called the “Run” of the tee. conversion inserts are sold to make a common tee Venturi at supply houses.

[@SaludaGradeFarm]

Learn something new every day!

[@wkendgarage]

I'm going to try this into my large scale reservoir that serves 2k heads of lettuce. Hoping this will also works. Thanks for the info

[@SaludaGradeFarm]

It will work, just size your water pump to circulate your solution at least 1 time every hour , preferably a bit more. I have 5000 gallons and a 5000 gallon pump running through 3 of these 1” venturis. I get pretty healthy roots but they could a little better if I had a 6500 gph pump going through the same 3 venturis, but I might add 1 more if needed.

[@SaludaGradeFarm]

My healthiest plants are in a system where I’m circulating the solution once every half hour, and the roots are pearly white! Hope this helps!

[@wkendgarage]

My pump just arrived today and Im gonna do it today. I hope this will also works on my reservoir. btw im using NFT system

[@waferlane2548]

how did it work out? @@wkendgarage

[@kogbong]

I am wanting to sink one of these down to the bottom of my pond. I want it in a skimmer bucket and run pipe down to the bottom of the pond. I hope it works.

[@SaludaGradeFarm]

The deeper they go the less ability they have to suck air through the pipe unfortunately

[@RoyJ2012]

Did it work?

[@prakashg348]

How down did you take it, did it work ?

[@Aiken47]

Great for breaking surface tension

[@WestLondonoldschool]

Is it safe for plants using solvent weld or is it OK? Just have to leave it a few days to cure.

[@SaludaGradeFarm]

Yes it’s safe, most of our drinking water is ran through pvc pipes with solvent at some point.

[@diachilders3271]

Ok. So. I had to improvise. I didn’t have a t with the one smaller hole so I basically 45’d the end of a piece of pvc, 3/4 inch, and made a hole that the 3/4 inch pipe would fit into a piece of 1 inch. It works….except when I push the get up down to the bottom of my pond where my pump sits, it stops pulling air even tho the pipe is well out of the water. As soon as I start raising it up out of the water, it slowly starts pulling air. What am I doing wrong!?

[@SaludaGradeFarm]

@@diachilders3271 that’s cool improve! not doing anything wrong, the pressure increases the deeper you go and negates the vacuum. The only way to get better flow at the bottom is to increase the pump size. But if there is a way to suspend it I woudl figure that out. My pond is only 1’ deep and I have a 3300 gph pump.

[@iann.152]

Very smart technique...

[@ulcessboerju4715]

Thank you for sharing your work. GOD Bless

[@SaludaGradeFarm]

You are very welcome! God bless you as well!

[@plixplop]

Genius! Does it matter how far below the surface you put the outlet?

[@SaludaGradeFarm]

Yes it does, it can go about 8” deep max.

[@yogaforsuccess]

seems like a good idea. Thank you.

[@SaludaGradeFarm]

You bet!

[@mikemotorbike4283]

Clever idea! But how does the size if the bubbles relate to aeration effectiveness? On another air stone video, tiny air bubble size was emphasized, but these bubbles look huge. How would one even measure, or know if one is infusing the air into the water enough?

[@SaludaGradeFarm]

Good question, the only thing I can tell you is that I have perfect aeration using this system which is a dissolved oxygen level of 8. I have some systems that are 800 gallons and I run a 40 watt 620 gallon per hour pump with one 3/4” venturi. I have perfect aeration with the benefit of circulation, and it’s really cheap and virtually maintenance free. If you are running a small reservoir get an air stone. If you have a larger system, airstones get really expensive and are more of a hassle. So it really depends!

[@davidstick9207]

Aeration is not about gas transfer from the bubbles...no matter how small they are. There simply is not enough time for gaseous transfer. Aeration occurs at the surface...and to get that...all you need is agitation. "Small bubbles" agitate the surface more effectively. But if the tank is deep...a small pore airstone has too much pressure on it to work effectively. Hope that helps

[@BitsOfInterest]

Cool, I'm going to make a hot tub with this 😂

[@ronin6158]

actually a cool simpler way to do it-- move the center out rather than outside in.

[@SaludaGradeFarm]

👍

[@GreatAgbey]

Can you elaborate on that?

[@infantesb]

I don't understand it either

[@dennissnijder9566]

Restriction or losses in waterflow costs more than the powercosumption of a designated airpump. You could also turn your idea 180degrees. Use a airpump/airlift to move water. Much more energy efficient.

[@SaludaGradeFarm]

Thanks for the comment!

[@dennissnijder9566]

@@SaludaGradeFarm You're welcome ;) For example...With an proper diy build airlift you can pump 12.000 to 15.000 liters of water an hour with only 20Watts! In Western Europe these kind of pumps are being used in several large Koiponds.

[@SaludaGradeFarm]

I’m only using 2.5 amps for my water pump, and the system is 20,000 liters. I think the main thing that I love about the setup is it only cost $250 and it takes only a few minutes. I’m looking into the air lift though, do you have a link to one?

[@infantesb]

Could you give pump or air pump links please?

[@dennissnijder9566]

@@infantesb Just Google for airlift Koipond

[@LongWindedUsername]

Great design, thanks for sharing.

[@SaludaGradeFarm]

Welcome!

[@TheAWilloughby]

Yes hello. Good video bro, thanks for the free education. Question: What kind of pump are you using? I'm getting ready to do my first hydro grow and I'm planning everything out, and I really like this idea and I want to test it out. Can you give me a quick diagram of what this setup looks like and share a pump and where I can get it? I appreciate any help bro, thank you.

[@SaludaGradeFarm]

I hope you saw the answer under your other comment.

[@ckhang]

lets see the whole setup

[@whtxkorean]

If your pump stops water will run up your air pipe? How do you clear that? Do you have to be running the pump before putting the system in the water to make sure the air snorkel remains clear?

[@SaludaGradeFarm]

Nope, turn the pump on, and it quickly sucks the water out of the pipe every time, there jo priming or anything else necessary, it’s care free.

[@TheCryptoMiner]

Check valve would help you

[@prakashg348]

​@@TheCryptoMinerwhich part of the unit should the check valve be fitted

[@prakashg348]

Did you check, if it worked when the motor was switched off for a day and then started. Did the water in the air pipe get sucked out and the unit served the purpose intended too

[@Ano_Niemand]

Thnx for the Nice Tip man, cheers

[@SaludaGradeFarm]

Welcome! Hope this helps!

[@BulanPuasa-kc2xb]

Apik pakde matur swun ilmunya👍❤️

[@SaludaGradeFarm]

You’re very, very welcome!

[@davidater9]

angle grinder with no guard used in the first 2 minutes ... safety first or last?

[@danfrank8938]

I'm looking for a way to oxygenate my sprayer for my hay field. Looks cool but i really need to nano bubbles if at all possible. I reckon i could neck it down until I get to 1/4in. What pump are you using? Thanks bro

[@SaludaGradeFarm]

I hear that you can put a small hose next to the intake of the water pump and the impeller will crush the bubbles. The pump may not last as long, but a pump is cheaper than a nano bubbler. Alternative may be an ozonator?

[@SaludaGradeFarm]

Btw my dissolved o2 is 8.5 ppm, so cannot really get higher than that on regular air.

[@creepyloner1979]

you're blocking a ton of water flow. instead of extending the 3/4" pipe down, attach it normally. then heat the 1" pipe to soften it, stretch it out to create a tapered slightly thinner section and trim the taper so that it extends just past the air pipe in the tee with a slight gap around the end of the tapered water pipe inside the tee.

[@SaludaGradeFarm]

I’ll give that a shot next time, hard part is judging which is better since it already have max DO saturation with this system using atmospheric air. Thanks for the input!

[@MrGrombie]

I’d like to see the entire assembly outside of water.

[@SaludaGradeFarm]

I’ve switched to just one 2” venturi in the system because the pump failed and the only pump size I could pick up at harbor freight was larger then the existing, so I built another larger venturi. Works just as good as 3 of these but with a lot less plumbing

[@johnrennick6769]

❤ This is sooooo cool!

[@SaludaGradeFarm]

Thanks!

[@Eastcoastkoillc]

That is nice simple and works like a champ

[@SaludaGradeFarm]

Thanks! This is pretty much how I aerate all my systems, I’ve never had o2 issues ever, and it’s cheap and pretty quiet too!

[@Eastcoastkoillc]

@@SaludaGradeFarm I'm going to give it a try my self

[@bryansenulis7242]

Water pumps use 100 to 400watts for small hot tub pond or aquarium

[@SaludaGradeFarm]

Most of the water pumps I use less than 50 watts, they don’t add heat to the system, there’s no air stones to clog up. The pumps are low pressure pond pumps that move a lot of water for very low wattage. I believe these systems are pretty efficient!

[@miken7629]

Instead of drill bit, you could have heated 3/4 inch pipe till it gets soft with a hot air gun and force it through the T fitting.

[@SaludaGradeFarm]

Very interesting, i might try that next time, seems I’m adding a new system every month or so to keep up with demand.

[@TimeSurfer206]

This could be used in place of a Trompe for compressing air, and could be fed with a simple gravity feed. I see many uses.

[@SaludaGradeFarm]

What’s a tromps?

[@TimeSurfer206]

@@SaludaGradeFarm It's a primitive Air Compressor that relies on the fall of water in a waterfall to catch air, and then collects that air. In its original forms it needs a LOT of height, and a lot of flow. It's named after its inventor, French chap named Trompe.

[@SaludaGradeFarm]

Curious if the falling water could drive a water wheel that turns the compressor, that’d be cool!

[@haroldsmith45302]

@@SaludaGradeFarm en.wikipedia.org/wiki/Trompe

[@InferiorFetus]

you could control the airflow with a cutoff valve

[@SaludaGradeFarm]

The idea is to get as much oxygen as possible into the water, any system using ambient air is limited, with the max being about 8 ppm of dissolved oxygen at sea level. The closer you can get to 8 ppm the healthier the plants will be, I would like to do a video where a measure dissolved oxygen in my system with a meter. Stay tuned!

[@Jkauppa]

Make a hybrid solid-liquid rocket with that, yep its a sand blaster kinda

[@SaludaGradeFarm]

👍

[@nilbertalas4183]

Hey Saluda Farm, quick question for this, can I make 3-5 of this in a 20 meter long RDWC set up using only 1 pump? Thanks in advance.

[@leadfarmer73]

BRILLIANT👏🏽👏🏽👏🏽

[@SaludaGradeFarm]

Thanks!🙏🏻

[@mlangfordoutdoor]

There you have it guys that will work

[@remarzDIY]

nice works sir can you tll me were i can buy lettuce seeds thanks

[@SaludaGradeFarm]

Thanks! I buy most of my seeds from Johnnys selected seeds here in the US, they have the highest quality seeds.

[@thehazelnutspread]

How to skip right over the PUMP that actually causes the whole thing to work

[@SaludaGradeFarm]

If you want to make it off grid look into the kratky method, other than that you need a pump of some kind, most hydroponic growers have a pump, either a Venturi setup like this, or an air pump kind of like a fish pump.

[@ThaSilentOne420]

Ppl in here acting like Venturis is something new . We been using them in the aquarium world forever

[@SaludaGradeFarm]

I learned about venturis in the Navy , the use them for all kinds of things, but yes it’s nothing new, but compared to air stones it’s cheaper and easier in this application.

[@veoquenoesunproblema]

The same process applies to internal aquarium filters and the problem is the noise, how is the noise with this when sucking air?

[@SaludaGradeFarm]

It is a bit noisy but you can plunk the air pipe outside or baffle it some other way without reducing fair flow.

[@mt.sinairefuge5360]

is your channel named after the saluda grade in NC which was the road going from Spartanburg to Asheville before I26 was finished?

[@SaludaGradeFarm]

Yes!

[@mt.sinairefuge5360]

@@SaludaGradeFarm cool. I remember as a child riding up or down that road before the inerstate was done. My grandparents would tow their camper up and down also. It was always a bottleneck due to the traffic but was an interesting ride.

[@JC-ec5qn]

What circulation pump do you recommend? Thanks

[@SaludaGradeFarm]

Just any pond pump that’s 1-2x your gallons in your system in GPH

[@Роман_Фасадович]

6 минут видео, о том как соединение сделать их пвх труб на клей. Да ты просто гений

[@StokeKoiAdventures]

Great idea, cheers for sharing, subbed

[@SaludaGradeFarm]

Sweet thanks!

[@Mike-xt9fm]

Can i connect this to my main water pump of my hydroponic nft system while it pumps water to the channels or do i have to connect the venturi to a separate pump ?

[@bryansenulis7242]

Also kills flow ...😢 if ran air stones in intake of pump or better in pipe would be more efficient on electricity running 2 pumps if ask me..air pumps don't use but 5 to 15watts

[@SaludaGradeFarm]

I don’t think a 15 watt air pump will cut it in this application, the pond is 5000 gallons, and would cost alot of money for all the airstones in weighted hose fittings etc…..

[@zarahofshiloh7537]

Great idea!

[@tajukinspirasi]

thanks alot i hope i can build it

[@SaludaGradeFarm]

Welcome!

[@warrenpeas]

fluid passing through causing air to be sucked in and on a carburetor its the opposite the air sucks in the fluid

[@SaludaGradeFarm]

Physics is cool 😎

[@Raknidm]

May I ask what pump you use?

[@RMS-gl6wl]

Rotary files are a real thing

[@SaludaGradeFarm]

Yes indeed!

[@larryd1296]

Recirculating pumps also heat up the water.

[@SaludaGradeFarm]

Not as much as an air pump that compresses air 👍

[@larryd1296]

@@SaludaGradeFarm An air pump is NOT submerged in the water. How can it heat the water?

[@samkom33]

@@larryd1296 Compressing air heats the air! thats why a diesel engine dont need spark plugs. The compression makes the air hot enough that the fuel explode when fuel is injected. 😎 A refrigerator-freezer works becouse of gas expanding and cooling the souroundings, hehe

[@JamesBond-ym4dq]

Thank you Sir.

[@DeepaHarish-2024]

Brother pls tell me what is the length/width of your bed? And what is the HP /wats of water motor ?

[@SaludaGradeFarm]

This bed is 10x80, but you want to shoot for a pump size that will circulate all of your nutrient solution at least once an hour. You can scale down to fit any size bed. I started making 10x16 beds because they are much easier to manage.

[@SaludaGradeFarm]

In my 10x16 beds I use a 660 gpm pump, with only one 3/4” venturi built I. The same fashion. In my large system I use a 5500 gpm pump with three 1” Venturis. Hope this helps.

[@DeepaHarish-2024]

@@SaludaGradeFarm definitely helpful brother. Thank you lots of love from India

[@CristoEsRey7]

I did mine exactly like that one and water comes out through the top

[@sahalwork]

this should reduce flow rate. is int it?

[@TodPaxson]

Whats the deepest that thiswould work,

[@SaludaGradeFarm]

This will work to a depth of about 10-12” depending on the strength of the pump and size of the aeration. Most of the time they venturis are set very shallow to get the most oxygenation/flow. Plus it causes a wake on the surface which also increases dissolved o2. I will say the circulation it adds is nice.

[@SaludaGradeFarm]

I’m

[@billbobaggins7617]

How many 600 gph pumps do you run In this big table?

[@SaludaGradeFarm]

I run 1 600 gph and then a large 5500 gph on the other end.

[@billbobaggins7617]

@@SaludaGradeFarm pool pump?

[@DonShei]

How deep can you submerge this in the water??

[@SaludaGradeFarm]

It depends on your setup but I run most of mine about 6-8”.

[@onlyonestinger]

so what are you adding to this tank??? fish????

[@SaludaGradeFarm]

Ultimate DIY hydroponic garden tour! See what my farm looks like in its 3rd year of production! kzbin.info/www/bejne/Z4qkfqWje8Z5o5Y

[@DennisDolan-fl3mw]

Really neat👍

[@SaludaGradeFarm]

Thank you! Cheers!

[@kenthoang5097]

what pump did you use to connect on your 1” pvc? can you give me the pump model?

[@SaludaGradeFarm]

You can use any submersible pond or fountain pump. Shoot for 1,500 gpm for each 1” venturi. I have a 5500 gpm pump hooked up to 3 of these! I also have a 600 gpm pump hooked up to a 3/4” venturi made the same way.

[@benzles8492]

I still have no idea how this actually works...lols. I could build one now but dont understand why I would want to... Need a side by side with an air stone to show the diff and explain the benefits.

[@SaludaGradeFarm]

A pond pump pushes the water through, past the beveled pipe, and that creates a vacuum that pulls the air in. On a larger scale, venturis are cheaper and easier to setup, plus it adds circulation with only one pump. You have to buy alot of airstones, fittings, and weighted hose with an air stone setup, plus you have to the air pumps are really loud and obnoxious 😀then if you wanted to add circulation you would need to add another water pump.

[@benzles8492]

Thank you so much for the reply and answer@@SaludaGradeFarm that makes perfect sense now and makes me wonder If I can use this idea for a DWC hydro set up but on a smaller scale. I appreciate your time here.

[@robinhooper7702]

Google Ventury and the principles involved will be obvious.

[@benzles8492]

@@robinhooper7702 Wasnt talkin to you numnuts, if I wanted your opinion, id have asked for it then gone and bashed my head into a wall...

[@WestLondonoldschool]

Could it be used in hydroponics dwc

[@SaludaGradeFarm]

That’s what this is, I have 2 800 square feet floating raft systems. About to be 4 😃

[@MeanMogy]

gotta love physics

[@SaludaGradeFarm]

Right!