DIY venturi, a few easy builds for aquaponics, aquaculture or hydroponics..
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- I really like the idea of aerating the fish tank by venturi to save some coin & help make the system quieter.. A mate shared an idea with me for a unit he had been working on & was happy with.. I decided to have a crack at his idea along with a few others to see which I thought would work the best for our set up.. I was most pleased with the results & ended up going with the "Bear Unit".. I have had one in the aquaponic fish tank for over 2 weeks now with no issues & have plans to add another to a moving bed bio filter that will be added to the system soon..
Was also very pleased with the off the shelf unit. That one will be going into the moving bed bio filter in the recirculating aquaculture system & is also being used in the fish tanks on the new aquaponics system.
The black "off the shelf" venturi used in this clip is now available through our "Blog Store". All ordering information is on the link below.
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Below are a couple of pages I found helpful when looking into venturis,
• Fluid Dynamics VII: Th...
en.wikipedia.or...
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Below is an explanation of "Fine bubble aeration" along with some useful links/references,
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Thank you Rob for kindly sharing your knowledge on venturi. An added bonus I came across is if your sump tank Pump is stopped the venturi will prevent water from syphoning back through the pump saving the use of one-way valves. Nick.
Hope it helps you out some Nick & sorry for taking a while to rep[ly. 👍
Cheers mate.
Nice. Only people who understand what they are looking at would appreciate all the nuances. Thank you!
You are welcome & have a top one.
I really like your videos. They are the right mix of technical and conversational, and have kept me up many a nights figuring out how I want to expand my little backyard system! Thanks so much!
Hi Rob. Greetings from the West Coast of Canada!
Just thought I would pass along to everyone something that I learned at a seminar on aquaculture.
If you're ever wondering if there's enough dissolved oxygen for your fish, just watch and see if they spend most of their time hanging about at the the bottom of the tank. If they do, then you have enough oxygen, as there will always be higher concentrations of O2 near the surface, due of course to the fact that gases are lighter than water and tend to get pushed up.
This is why fish will gasp at the surface if they are short of oxygen.
I thought it was a very useful tip when I heard it, and thought I'd pass it on.
Love the vids and your delivery. Keep "em comin'!
Cheers Steve.
Have a top one.
Here in the subtropics we have a very mild winter with the temps only dropping below freezing for a few hours at a time on a handful of days every winter.. Our block hasn't had a frost on it in the 12 years we have been here.. I had the system running all winter & was feeding the perch most days... If we were in a cooler area down south we would probably just run trout during the cooler times..
Cheers & have a great one,
Rob.
Hi Rob, from what I've read the size of the bubbles really makes on difference as their not in the water long enough to make a difference. It's the bubbles breaking the surface tension that does the oxygenation but like most things their are as many schools of thought as ways to do things. Thanks for the video mate.
It's one of those things that works but most everyone is wrong about why it works. A powerhead in the tank may be a better option than injecting dirty air into your water at high speeds
Great info, thanks for making this video. I needed a quick and cheap solution to start adding air to my pond, as it's been hot and dry here in Florida, at least for this time of the year. Coupled with it being too still, it was starting to stagnate and I didn't want to end up with a fish kill if I waited too long. The pond's main purpose is as a sort of fire hydrant, since there is no municipal water services where we are, but we enjoy the snakes, fish, frogs, and turtles that call it home as well. The ideas in the video helped get the job done, for now.
I've got an artesian well that's used for keeping the pond filled, so I just added a venturi in to the line. I experimented with putting it at the start, middle, and end of the line, and having it by the valve works well while avoiding the problems with locating it elsewhere. (Debris, pond height, etc.) I did find that by extending the length of the air line coming in, it actually suppressed the sucking sound quite a bit. That extra length also allowed me to orient the opening towards the ground, protecting it from being bumped and keeping the opening from having stuff fall or blow in to it.
It's not the ideal solution for my application, but I think it will help out until I can bury electric service out to it and buy a proper aerator for a pond this size. Again, your video was very helpful, thanks for taking the time to make it.
Simple Venturi For Pond Aeration
Nice one mate.. Thanks for the clip.. Looks like you're getting a load of air into the water & am glad it's worked out for you.. Are those solar pumps any good for aeration purposes ?
Cheers & all the best..
I love the idea of this Venturri aerator,.. thanks for sharing your magnificent creation, from USA & THAILAND
No Problem Cesar.
Cheers.
Another outstanding Idea !!!, thanks for taking the time to share what you're doing with your aquaponics setups, I'll defiantly be using this idea on my setup.
Hope it gave you a few useful ideas..
Cheers & have a great one..
Thanks for watching folks & don't forget to click the subscribe button if you enjoyed the video. 🐟🐟
Share the clip around with family & friends if you think they'll enjoy it too. 👍
Cheers all & have a top one. 😊
Rob, Will you take a look at my aquaponic video (36 seconds) and let me know what you think of my new system?
best,
Sam
I used similar constructions in fish tanks. If u get larger bubbles, it helps to run the outlet of the pipe against the wall of the tank. If you have some decent pressure then the large bubbles will hit the wall of the tanks and burst in small bubbles.
Worked really well in my fish tanks!
Hi there & thanks for that..
Ended up running with a few I was given in the aquaculture build but think the home made jobbies will get a run somewhere in the new system soon..
Cheers,
Rob..
Thank you Rob. I'll be using a venturi for my small fish system. Thank you again for all your great videos!!! Ernie from Temecula, Califorinia USA.
+Ernie Yribe
Hi Ernie. Am glad the clips have given you a few useful ideas. Hope the season has started off well for you over there.
Rob
Rob...this video is really awesome! you answer all my questions through your very detailed, i surely do this to my backyard. thanks a lot once again.
Hope it works out well for you :)
Cheers & have a great one,
Rob..
This is very smart. I used to have a basement full of aquariums, breeding aquarium fish half professionally.
I experimented with venturi-solutions there and getting rid of some air pumps was great. The only thing I have to add is that if you use soft elbows (not the 90 degree variant), you will optimize water flow. The water will then be able to "screw" itself through the bend and you will not loose as much pump capacity.
Thanks JV.
have a top one.
Nice simple options, thanks.If a really efficient Venturi is required it does need a taper inside the water feed tube that has two angles. The air intake enters at the low pressure point.
Thank you for this video and all the others. I just started building my system and watching your videos saves me a lot of mistakes. Hopefully my system will start and be better thanks to you.
Hope it gives you a few ideas & enjoy the build..
One of the best parts is planing & constructing the system I think..
Cheers, Rob..
Wow, i've never thought about that! it's an amazing way to provide oxygen.
i'm planning to do an aquaponics system as soon as i can. i find your videos very useful.
thanks a lot!
Hi Russel Workman..
The water in our system is so clear due to the Radial flow filters as well as the media beds removing the bulk of the solids.. We still get solids in the fish tank from time to time that we remove with a little push on vacuum attachment that fits onto the solids lifting outlet that works really well.. Aquaponic solids vacuum attachment for fish tank..
The solids get collected in the radial flow filter where he can be removed later.. Don't really have any collect in the sump tank at the moment.. I probably vacuum it out about once every 6-8 weeks during summer as the SLO picks up the majority..
Hope that helps some..
Thank you. I haven't heard anything about venturi here in the States. Love the sound of just the bubbles. You do good things and I appreciate it.
Hi Pat... There are a few different styles you can pick up from Ebay fairly cheaply.. They are normally used in spar baths or for liquid injection of fertiliser into irrigation lines the garden.. I like the home made units over them as I get to tinker around ;)
Cheers & have a great one,
Rob..
Hi Rob, thank you very much for this video. A forum member (from Murray's forum) directed me here when I said that the venturi was the one thing in AP that I didn't really "get". Well now I do thanks to this video.
Regards, Martin.
Hi Martin.. Glad the clip helped out.. Are you setting up a new system?
Cheers mate & have a great one :)
Rob Bob
Hi Rob, not currently setting up a system as trying to emigrate to your part of the world. So kind of in limbo but definitely learning all I can to be able to set one up when the time is right.
Regards, Martin.
Excellent ideas and thank you for doing the comparisons. I am thinking about adding one to me new aquaponics setup and getting rid of the air pump, one less energy sucker.
That's why I was looking at them as well.. Make more sense to run one unit to do both jobs.. Did buy a new 4200lph air pump as a back up for the 2 systems.. Doesn't hurt to have some extra air for the warmer months here I think..
Cheers & have a great week..
Rob.
Rob,
Thanks for this video. Great insight!!!
Thank you for sharing. I recently build a 16000 gallon Koi pond with a 5'X 10' bog filter. I wanted to induce air to the water as it entered the bog. Your DIY will make that happen.
Hope the venturi does the trick for you Benjamin.👍
Awesome technique for getting more air in the fish tank without the annoying water pump buzz! #aquaponics #aeration
Thank's a lot, Bob...
Very inspiring & practical...
Greetings from Bali
Thanks :) Hope your build is going well.
Rob.
Hey Rob, just emailed an order to you.
I'm setting up a system i picked up second hand with a few modifications.
I got 2x 500L growbeds, 2x 1000L fish/sump tank all pipework, clay balls and 3x pumps
$800 for the lot. A nice upgrade from my ibc.
I'm going to add in a radial flow and bio filter using your videos.
Thanks so much Rob.
Nice score Todd. 👍👍
Hows the build going or are you leaving it for the Christmas break?
Cheers & have a top one.
I love your fantastic ideas which lovely to follow Good luck in the future All the best
+Aniela Szymanska
thanks Aniela.
All the best to you as well :-)
Loving you work Rob I made a failsafe on mine -Simply run a pipe over back to the tank
Cheers Mate!! Rob, you are a beautiful break from the day-to-day depression/horrors of the news of the day instilling hope for the future. I'm grateful to be in a position that I may have a chance to put your ideas into practice here in central TX. The future can only tell. Wishing you and B all the best, sir.
Hi Eric & thanks mate.
Hope the build goes smoothly if you have a crack at it. 👍
Cheers & all the best to you & yours.
Thought about doing that in the past but decided on air stones then venturi.. I like the idea of the bubbles & flow in the base of the tank stirring the water up more with the venturi.. Have noticed that the solids don't pool in just one area now which I think is a good thing as it means the water is circulating better in there now..
Cheers Charles & glad you like the clips..
All the best,
Rob.
this was a very good idea inspire me now some day I'll make my own
Hope it works well for you Matt.
Cheers.
Cheers for the video, it helped me design my own venturi and finally get rid of my air pump, I've decided not to put mine in my fish tank, I've got mine in my sump, I have had to restrict the flow between my pump and fish tank with a ball valve because my fish tank started overflowing, (my pump may be a little to powerful🤣) I've redirected the water that I've restricted from going into my fish tank back through a venturi and it returns to my sump which adds oxygen to my water.
I do have a video on my very new channel (it's the only one so far) if you want to see how it works.
You Rock Rob!!! Wonderful ideas.... Thanks for sharing!
Cheers n2kois :)
Have a good one..
Howzeet Rob,
What a great video mate, simple and very clear.
And fantastic links too.
Thanks for sharing mate.
+Duncan Bell
Cheers Duncan 👍
I love your video .I have a little over 3000 gallon pond and just rebuilt and think I am going to make one of your venturi .Thank you for the great video .I will be making one .
Hey there..
Glad you found the build useful & has given you a few ideas..
Cheers,
Rob.
well the one i built is working great and tomorrow i will be building another one my koi will sure love this in the summer heat when oxygen levels get low .thank you again
sissy murphy
That's great to read :)
Have a great one :)
thank you very much for the teaching aquaponics Javier greetings from Uruguay
Hi there... Just showing how things have gone for us here with our backyard system.. Hope to do some formal studies on aquaponics in the future once my home duties are done here..
Cheers Javier,
Rob.
Thank you very much for sharing your knowledge, its a awesome help which assists me in my trial and error era. Bruce South Africa
Hi there Bruce..
Glad the clips are giving you a few ideas.. Have fun with the build,
Rob..
Have thought about using some shade cloth as the holes are smaller but I think we are both on the same page ;)
Shall be gluing up the final unit for the system this week along with 2 for the RAS as I think it has proven it's worth..
Cheers Ra & have a great one..
Excellent info there ... think I might need to play with that idea a little bit. I love the sound of the water flowing but I hate the sound of my little air compressor in the greenhouse so that might be a solution. Thanks!
wow, i like the device with the clear tube.
Just wow....
Hi there..
I'm using that unit in the moving bed biofilter in the new build... Found it woks better in that application than any other venturi I've bought or made..
Would be great to get an O2 meter & do a side by side test on some water to see which is best..
Cheers & have a great weekend,
Rob.
Hi Rob. Subscribed already. That water fall into the sump tanks can be made into a super aerator by placing them into a pipe twice its size with a few slots resting on the bottom. The water pressure and splashing pushes the air down to the bottom of the tank through those slots. Peace
Have seen folks use something similar in their systems. 👍
Cheers mate.
Wonderful simple Venturi! Thanks.
Works well for a DIY jobbie..
Cheers James & have a good one..
The idea you shared works perfectly. Don't buy one when you can make your own for under $5 AUD. Thanks Rob :)
Cheers for that & hope the info is useful for you..
Have a great one, Rob :)
Thanks..
have a great one, Rob..
Great video. I will be adding these to my system this weekend.
Hope they go well for you Mad Mike... They are a real easy & cheap build..
Cheers & have a great one..
Very nice video, will add it to my collection of things going into my next build.
Cheers
Hope it comes in handy mate..
Cheers..
I just started my wood base for my two 50 gal tanks, painted the bottom 6 inches as lately I am getting mold on the wood from the spring thaw.
Once I actually start the build I will post pics and ask questions.
Zach D No problem.. Can take a while for me to get back to folks as you've seen just to warn you ;-)
Have fun with the build..
np
Try restricting the air supply with a small valve and it will dramatically reduce the size of the bubbles! You want bubbles that are so small that they remain suspended; unable to break the surface tension force of the water and escape. You'll know when you've got it, the exhaust will look very 'milky' in appearance. These fascinatingly tiny bubbles can actually break down fine solids in the system and convert them into plant available nutrients :) That's why I'm installing one inside of a shallow DWC raft system that feeds into my media bed, so that the inlet water is always pre-oxygenated. My experience with indoor hydroponics helped me realize the importance of increasing total dissolved oxygen levels. I really cannot stress the significance. The impact on the plants is observable and immediate.
Also running a larger pump than I used to demonstrate hen will help as well. 😉
@@RobsAquaponics That works best actually. If you have an old fish tank lyin 'round, set up a demo!
The key I found to small bubbles was a 40% ish angle and then heating it and squishing it into a slit as well as adding a sponge to the intake. I had over purchased on my pump and had plenty extra so I took a T off the main outlet and diverted it back with the Venturi . I'm interested to see your next test.
Cheers for that Don.. Might be a while before the next test but will be playing around with them when I make up the bio filter for the AP later today.. Not sure if I will do a clip on it though.. Cheers mate...
Use to make me cringe whenever we could hear it in the house.. Neighbours house is closer than us but they said they couldn't hear it... Think they were just being polite..
Cheers sir & have fun playing around with it..
Hey there Michael.. Hope all's been well..
Shaun sent me a link to it the other day & it looks like a great idea..
Cheers sir & have a great one.
Rob..
That's brilliant Rob!
Hundred thumbs up Bud! Now that's what I was talking about! You got it going on. Beauty!
love the ingenuity here
CC Bear came up with a great design.
Cheers 👍
Good Job Fren
Cheers Arturo.
Rob,
Thanks for this video. Great insight
Hope it helps..
Cheers..
Thanks Rob your videos are allways informative
Hi Rob.
the venturi I build like your's wasn't working too well for me. I ended getting a load of water coming out of the air pipe. I suspect it has something to do with a restriction somewhere down stream of the venturi bit. I ended up just getting a 25mm pipe with a 90 degree connector, drilling a hole and putting in a small pipe and it works really well. Just like your vid at about the 4:50 mark. I noticed that if I put a hose in the end of the pipe, then water runs out of the air inlet. I guess there is a scientific reason for this. Anyway this simple one is what I'm sticking with for now. Loads of bubbles! thanks for your video.
Hey Anthony..
Good to know you got it all sorted mate.. Am running with that style in the fish farm tanks at the moment too ;-)
Cheers ..
Thanks to you and the video links you shared, I tried my hand at this...I used what I had on hand..didn't buy any thing extra. This is my results..
Venturi Effect for aeration of fish tank..
Looks like they're working well for you Ralph... Should keep the fish happy..
Cheers mate,
Rob.
Rob Bob Thanks brother. Your videos helped a lot!!
very good!!!!!!! congratulations bro
Cheers mate :) Just seeded it out again but think the girls have smothered all the seeds by scratching soil all over the green shoots..
All the best,
Rob..
Liked it! Unbelievably helpful video my friend! :) You would not believe what I intend to use this system for - self service car wash, detergent dispensing system for the pressure washer :)
😃 That's great to hear Svetoslav 👍😊 Hope it works out well for you mate.
Cheers.
Rob
I was told that some do it in the return lines from their grow beds to the sump tank & is something I will be looking into.. Even if it only adds a bit of O2 it's better than nothing I figure..
Cheers Jason & have a great one..
Rob..
It's taking it's time but am getting there slowly..
Have a great one,
Rob..
Cheers & hope it gives you a few ideas..
Have a great one..
Rob.
Evening Wayne..
For the test t was a 3800LPH & in the fish tank there is a 4500LPH unit.. Both are Sunsun branded but think they may go by other names depending on who imports them..
Cheers sir & have a great weekend..
Interesante video muy bien explicado, el agregar una reducción al flujo nos ahorra una bomba de aire para apoyar la oxigenación del estanque piscícola. saludos Rob
Thanks Eder. Did you watch using translated subtitles & if so did they work OK for you?
Cheers mate & have a great one.
DYI Venturi it´s very good.Thanks excelent idea.
Hope it gives you a few ideas,
Cheers..
Rob..
Yes, I hope to try it in my new project as soon as blue crabs may know.
Thank you very much Rob
good day mate, Just watched your video, Man that is way cool, I'm going to try that this spring when I build my aquaponics system. It will save me the price (and noise) of a Air pump. Way to go, Keep up the good work. thanks Clyde in Ark. USA
Cheers Clyde.. Hope it comes in handy & enjoy the build.. Should be out there making a new radial flow for ours :/
Have a great one,
Rob..
Hi David..
I have seen that build & think it is great but a bit over sized for my 1000L/270gal FT though..
Would be great for a pond though I think...
Cheers Mate..
Gidday Rob, cool video mate. I am possibly looking at doing some small scale aquaponics soon, so appreciate all the tips, thanks Marty!
No problem Marty.. Let me know if you want any info or sites that might help you out..
Cheers mate..
Good work man your system is very great.
Cheers mate :)
New one is coming along nicely..
Have a great one..
Great stuff Rob. Plan to do some testing down the road myself. I want to try to use a natural venturi to stimulate aeration in a deep water culture system. Also I'd like to see if I could gravity feed it, from a raised bed above.
Cheers Richard :) Was fun & only slightly drenching top make ;)
All the best Sir :)
Wotcha! You may have seen this during your research...but just in case you havent. Try sticking a small sliver of synthetic sponge into the air intake of the venturi. It reduces the size of the bubbles but also reduces the sucking sound of the venturi. If you make the sliver wedge shaped you can pull it in and out thus reducing the density which works like a throttle for the bubble size.Top tip is to cover the sponge filled pipe end so the sun dosent harden the sponge.
Thanks for that Michael.. I have seen people add them to the outlet but haven't played around with that yet..
Is it getting chilly over there yet ?
Cheers
First hard frost of the year this morning. The carps water has just dropped below 10 degrees c so its time to swap their high protein feed for wheatgerm.
did you Like the video I Did
hi
Michael Tricker helllo
Having made several myself, it looks to me like you should put your pump on the other side of that commercial venturi. The lower pressure is created by a smaller water jet going into a larger volume pipe. That draws in the air.
Hi there Old Guy Phil.. The commercial venturi has markings which show what direction they should be plumbed so followed them.. Will play around with it in the coming weeks while I work on the RAS...
Cheers sir..
Rob..
Great ideas. Thanks mate. Have you considered a piece of stocking around the outlet of the pipe for finer bubbles? Forgive me if it has already been mentioned. I haven't read the comments yet.
Hey Ross..
Has been mentioned a bit.. One problem is that any fine debris in the water will tend to clog it up I think.. Would work if the water going into the pump in the sump was filtered though..
Cheers mate & have a great one..
Rob.
Hi, couple thoughts on the difusser bar. Have you tried graduating the hole size so that you have smaller holes closest to the elbow and larger sizes as you reach the end of the pipe so as to spread out the bubbles more? Have you tried covering the difusser bar with a small gauge netting? Perhaps not something as fine as a woman's stocking for fear of clogging, but perhaps a few steps upwards of that? My thinking is that the netting will slice the bubbles as they exit the holes, thereby smaller and greater quantities of bubbles should be produced.
Love your videos. Please keep them coming.
Hi there Charity :-)
I've actually taken all the bars off the end of the line in & now have the water entering the tanks through a straight pipe.. I've found it is delivering a good amount of air & we didn't have any issues with the large perch not getting enough O2 through the hottest part of last summer.. I have been told that some folks have used mesh & thin sponge in their aquarium set ups to reduce the bubble size so it must work OK..
Thanks & hope you have a great weekend,
Rob..
to make the bubbles smaller have you thought of running a few layers of plastic window screening around the holes with a bit of distance between the layers to break up the bubbles? or you could use a wrapping of open cell foam to do the same thing. Open cell foam might trap and debris in the fluid though and require cleaning.
Hi there Thomas..Have had a few people suggest that thanks.. The bubbles we're getting from the bar arrangement at the end of the delivery pipe are fairly fine where the ones in the tester barrel were just running from the end of the pipe so were rather large..
Cheers & hope you enjoying the holiday season..
Rob.
Another idea would be adding the air intake venturi to the pump intake line, rather than its output. The bubbles would then be broken up by the pump impellers at the beginning of the system, rather than having to route flow back. Or having venturi's in both places.
Not sure how that would go but worth playing around with.. Might need to alter the shape of the air intake pipe a bit from the way its set up now so it just doesn't suck too much air.. Will definitely keep it in mind when I get down to play around with it again..
Cheers Jim..
Really nice information. Thanks for this video!
Cheers & hope it helps you out some..
Have a great one Jean-Francois,
Rob..
would love to see more videos on the back yard pond filters ect that is what I have and need more info on how to get these set up and working thanks Rob
Have you seen the clips on the radial flow & bio filters that I've posted Janis?
They are all that I have up at the moment but will probably post on others as I start to use them..
Cheers..
Rob..
It was uploaded a few months ago but left private so I could get some help from some people on an AP forum.. Could be that the iPad app hasn't seen it's now open for all to see..
Hope you had fun in the cave & shopping Dave ;)
Cheers Sir..
Cheers, hope it comes in handy for you..
Rob..
+Sarah Davis..
On the final build there will be double 45° angle fittings made up like we use on the aquaponics set up :) Spent some of yesterday gluing up the 50mm/2" jobbies for the fish farm & aquaponic refit..
Cheers & have a great one Sarah..
Frankie Bishop Please don't spam my clips trying to make sales. You're not the first & won't be the last but I don't appreciate it at all.
Get original, create something useful & offer it for free to help others rather than trying to sell via "click bait". From what I've been told it's not worth the money charged for it when there is so much free information available on the Internet.
Nice job! How about to use some fine mesh screens overlapping each other?Put them horizontal above the air flow and just below the surface where the dissolving process occurs. (Oxygen dissolves at the surface of the water)
I think they'd get in the way in a fish tank. Might work OK used on the plant side of the system though.
Small mesh over the outlet will turn big bubbles into small.
Works to a point but it also clogs up a bit as well.
Cheers mate.
This is just what I was looking for thank you for taking the time to make this video with the detail I love. What is the name of the Venturi you bought?? Want me one 😂
I sell them through my site & ship them around the world if you're interested. ;)
www.bitsouttheback.com/venturi
Your fish look awesome.
An addition 12 inches of pipe over the sump would help oxygenate. Cap the end of the pipe and drill holes every inch. Level it and your 1 stream will become 12.
All the grow beds free fall into the sump tank in the aquaponic system so I think system gets loads of dissolved O2 in the water.. Was planing on adding these venturis into the new fish farm system.. Should be out there working on it now.. Have a few more comments to respond to first though ;)
Cheers & have a great one..
If it's feasible to put the venturi in line before the pump the impeller will chop the bubbles up finer and give you better dissolved oxygen. It's a technique some protein skimmers use for saltwater aquariums, but it should work here as well. The only potential problem I see is if the line between the pump and the tank is too long the bubble might merge into larger bubble before they reach the output in the tank. You would also have to keep the venturi air intake above the source water level, or it would become a fountain if the pump ever stopped.
Hi Bob.
It's not something I can do with the way my pump is set up but would like to know how you get on if you have a crack at setting yours up that way.
Cheers mate.
This HAS been helpful Rob! I'm needing to put one in my fish pond and/or I may even build it into an vertical grow system (connected to the Koi pond) as well....I'm curious, what brand and model of pump you were using? Awesome video brotha, well done. ~Wayne
The venturis seem to work well. It would seem to make air pumps redundant.
thank you! for your time
No Problem Bonnie 👍😊
have a great one.
2 suggestion for smaller bubbles do a mesh modification on your impeller.. get a very coarse scotch brite pad cut a disk off zip tie to to your impeller connect the venturi to the intake side of you pump it will mico fraction the bubbles. for noise there is a muffler to reduce the sound to almost zero i can send you a design for one.
Hey Chad..
Haven't tried the venturi on the other side of the pump yet.. Might play around with it next time I put a system together & see how it goes..
Am playing around with a small muffler design here as we now have 4 venturis running on 2 separate systems & don't want have to bribe the neighbours with too many fish ;)
Cheers mate & have a great one..
Rob.
文氏管 ，不错的发明！谢谢您！
Hope it helped you some.
Cheers.
nice design. and nice explaination.
Glad you like it Joel.
Cheers mate & all the best.
it's really a big help for me....thanks a lot
Glad it's given you something to think about Chung..
Cheers mate & have a great one,
Rob..
Thank You very much!
Hope it helps give you a few ideas..
Cheers,
Rob..
It sure did!
Cheers from Greece, Kostas!
Great video Rob. Thanks buddy.