Return pump size?

[fishstix]

I am setting up a 220 gallon tank

72x24x24, with 75 gallon sump. The tank will also have two WAV

The plumbing is 1.25 all the way to where it goes into the tank, then it 3/4

My overflow is rated at 2000 GPH.

I was going to use a pump that rated at 2000 GPH, is that going to be OK, or a problem?

Thanks

 

[hijinks7]

You won't see 2000 GPH at the returns. 2000GPH is with 0 head. So you have 3-4 feet of head and then a T fitting which will introduce artificial head.

What a lot of people are doing is they buy a very large DC pump and don't run it at 100% so its quiet.

 

[fishstix]

Maybe I would be better off going with something like?

A200 DC Controllable Pump (4,400 GPH) Abyzz??? Though it so much money, but worth it maybe?

 

[hijinks7]

I forget the math with T's and head but it varies per pump but with the 2000 gph you might see like 1200ish best coming out of the returns.

Most people like to get big pump because they are quieter since its not run at 100%

It really depends on how much noise might effect you and if you want to see 2000 gph at the returns or not. Generally with DC pumps you gate your return so you can fine tune the return flow to match what the pump is sending back to the display.

 

[DCR]

The 1-1/4" return and especially the 3/4" return is likely to restrict your flow to less than 1000 gph, regardless of the pump. I would not advise buying a more expensive pump to get more flow with that piping arrangement. You might do it to be able to turn it down for more quiet operation as suggested.