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Old 01-29-2016, 08:42 AM   #1
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Default Recommend me a pump

So I am in need of a new pump for my dwc tote. Because the two I bought are too weak. Its a 18 gallon tote 3 plants in 8in net pots. How many gph should the pump I get use? I was going to get a dual outlet pump that is for 60-100 gallon aquariums. Or one that is rated at 126 gph.
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Old 01-29-2016, 05:16 PM   #2
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I just got this one and am happy with it. IMO, the more bubbles, the better. This one is 240 gph and fairly quiet.
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Old 02-11-2017, 02:55 AM   #3
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Quote:
Originally Posted by deadkndys View Post
So I am in need of a new pump for my dwc tote. Because the two I bought are too weak. Its a 18 gallon tote 3 plants in 8in net pots. How many gph should the pump I get use? I was going to get a dual outlet pump that is for 60-100 gallon aquariums. Or one that is rated at 126 gph.
You nailed it! General Rule of Thumb. You'd like your solution to recirculate about 7 time per hour. So one that moves 125 GPH should get the job done. 7 x 18 gallons = 126 GPH. A 150 GPH will get you about 8 cycles per hour. I'm not so sure that going larger offers any benefits. Plus the fact that pumps add heat to the solution. (unless you have an inline refrigerated chiller)

Use caution however. Insure that the gravity feed tube FROM the epicenter/rez TO the plant module can flow back fast enough so the return line from the pump to the epicenter doesn't overflow the epicenter. (speaking from experience here) LOL

Then again...you have a 18 gallon Tote, correct? What is its actual capacity in gallons? My guess is you're somehwat closer to 12-14 gallons of actual solution.
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Old 03-21-2017, 09:05 PM   #4
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Get a Linear Air Pump, super quite not cheap but worth every penny. I use an Alita 35.
Alita, Air Force, Sweet Water, are just a few solid choices.
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Old 03-22-2017, 09:40 AM   #5
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Nutes eat air stones. Use heavy duty air stones.
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Old 03-28-2017, 04:38 PM   #6
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Its real important to look at the amount of lift each pump has. It can be a high gph pump but if it isn't capable of lifting the water high enough then it wont work. I usually find pumps that will lift 3-4 feet. They work without issue.
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Old 03-28-2017, 04:40 PM   #7
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I just realized that you are looking for an air pump I was talking about a water pump.
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Old 12-17-2017, 01:35 PM   #8
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How much do you really know about all those little air bubblers?

Bubble Diffuser Differences http://www.mooersproductsinc.com/bub...n-differences/

Pentair Air Diffusers https://pentairaes.com/aeration/air-diffusers/show/all

Air Stones vs Air Diffusers https://hydrobuilder.com/learn/air-d...r-hydroponics/

Air stones are great Christmas gifts.
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Old 12-18-2017, 03:43 AM   #9
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Quote:
Originally Posted by Hushpuppy View Post
I just realized that you are looking for an air pump I was talking about a water pump.
ditto... I was wundrin' what the heck THC was talking about :-)
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Old 12-18-2017, 03:45 AM   #10
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Quote:
Originally Posted by B3henry View Post
How much do you really know about all those little air bubblers?

Bubble Diffuser Differences http://www.mooersproductsinc.com/bub...n-differences/

Pentair Air Diffusers https://pentairaes.com/aeration/air-diffusers/show/all

Air Stones vs Air Diffusers https://hydrobuilder.com/learn/air-d...r-hydroponics/

Air stones are great Christmas gifts.
Where's that guy that was going on and on and on about dissolved oxygen? He'd have a field day with this.
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Old 12-18-2017, 12:49 PM   #11
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Quote:
Originally Posted by sopappy View Post
Where's that guy that was going on and on and on about dissolved oxygen? He'd have a field day with this.
Hey pappy, here's more about those bubbles, trivia stuff to ponder and talk about when the "smoking lamp is ON" (US military terminology) in the morning @ 10 AM.
Gas bubbles in any hydroponic life support system do many different things you may or may not be aware of at a casual glance.
If you practice DWC or RDWC cannabis growing and you really like to see and hear air bubbles, air bubblers have serious DO limitations in intensive DWC grows. As air bubbles pass through the bubble rocks, rise to the surface the air bubbles dissolve a little bit O2 gas and 400 times more nitrogen gas into reservoir water. There is some water cooling effect as the air pressure drops when the air is forced through the air bubbler under pressure greater than ambient barometric pressure. Rising gas bubbles (makes no difference what kind of gas bubble) activates protein skimming or foam fractionation. Rising gas bubbles through the water column help clean up that nasty reservoir water bringing that nasty stuff in the water to the surface so you can rake it off the surface of your reservoir water. Gas bubbles do that sort of stuff too.
If you are really sick and tired of buying, using and replacing those “junk air bubblers” that stop-up all the time there are far better options available. I think the very best bang for your hard earned buck is a NanoBubble generator:
*Nanobubble Generators http://www.oxydoser.com/ This is an example of only 1 commercial brand of Nanobubble generator.
*What are Nanobubbles http://www1.lsbu.ac.uk/water/nanobubble.html Check this out if you have no concept of Nanobubbles; how they are made and what they can do for your crop grown in a hydroponic DWC life support system.
Nanobubbles are very interesting from not only a water chemistry point of view, but also from the physics point of view too. These tiny cavities of gas in the water column remain suspended for weeks and they do all kinds of things that conventional gas bubbles can’t do with electrical charges on molecules applied in the hydroponic growing industry. Nanobubbles are really special.
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Old 12-18-2017, 12:56 PM   #12
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Oh, I forgot to add this Breaking Industrial News release from the hydroponic farming business dated December 7, 2017:

Posted on 12/07/2017
Moleaer™ Launches nanoBoost™, the Most Efficient Oxygen Delivery Mechanism for Commercial Greenhouses

https://hortamericas.com/category/blog/news/ and https://www.prnewswire.com/news-releases/moleaer-launches-nanoboost-the-most-efficient-oxygen-delivery-mechanism-for-commercial-greenhouses-661824743.html
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Old 12-19-2017, 11:37 PM   #13
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I have buckets and tubs, I only use the one stone in each system, but I do run constant circulation, water falling and splashing or flowing through hydroton. Fed by wee fountains. You don't mention those but I'd like to think it helps with the DO
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