700 gallon stock tank pool -- finally got the tank....now what? part 1, The Pump

CaptnAmerca

New member
Mar 24, 2021
3
Florida
Pool Size
700
Hello. It took a year of looking, but we finally got our 8-foot round stock tank. These things were sold out everywhere last year, so we were happy just to finally get one in our backyard. OK, now what?

The most obvious next step is a pump & filter, right?

Well it is very hard to find good info on what size/HP pump to get for such a small pool. The sites that specialize in pools are usually talking about a large Intex pool at the smallest, and the "Pintrest" sites that blog about how pretty their backyard stock tank pool is, rarely follow-up on the necessary details like pump specs, chems, maintenance. Basically, my sources of info are pools 3 times bigger than mine, or shallow Instagram bait.

Hopefully, that's where TFP comes in.

So, how big of a pump do I need to keep 700 gallons clean and moving?

We live in Florida, so it's humid all the time, and bugs are constant. One look at the ponds around here shows that algae is lurking around every corner, waiting for us to drop our guard for a second. We will get to the chemicals, but what's a good pump & filter setup?

How much power, 1/2 HP? Variable speed?

What type of filter? Is sand enough? Is a cartridge overkill?

Comments, suggestions and advice welcome.

(The sooner the better. It's getting hot already.)
 
1/2 hp pump should be plenty for your setup. Sand or cartridge filter will do. Buy whatever quality pump and filter you find.

Pump HP required is based on the “head” requirements of your plumbing setup and flow rates of your plumbing, not your gallons or algae propensity. Keep your plumbing simple and you don’t need much HP.
 
1/2 hp pump should be plenty for your setup. Sand or cartridge filter will do. Buy whatever quality pump and filter you find.

Pump HP required is based on the “head” requirements of your plumbing setup and flow rates of your plumbing, not your gallons or algae propensity. Keep your plumbing simple and you don’t need much HP.
Thanks for the advice. I will try not to overthink the pump selection too much. Analysis paralysis is a real thing.

What do you mean by head requirements? Are you talking about the size of the intakes and returns?
 
A Couple recent threads with some ideas.
 
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What do you mean by head requirements? Are you talking about the size of the intakes and returns?


Hydraulic Head is a term that originated in the water distribution industry and relates to the "head" or top of the water level. It is also another way of expressing the amount of pressure (PSI) lost or gained in a plumbing system. For example, a pool pump adds head or pressure to the plumbing system while the friction loss in piping and equipment removes head or decreases pressure in system. In addition, there are two basic types of head loss and gain in any plumbing system; Static Head and Dynamic Head.

 
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