Need recommendation for submersible pumps

[lapizzaro]

Ineed some advice on a 1200 gph submersible pump with moderate heat transfer. I have had Eheims, Mags and Viaaqua pumps and like them all but I need to expand my horizon since I need a new More powerful pump.

I need a recommendation on good submersible pump for my new 120 gallon. The tank has 2 overflows rated at 600 gph each so I expect 1200 gph approx into my sump. In ADDITION to sending water through the 2 returns I plan to draw water from the sump via a SCWD using a Viaqua 2600 rated at 740 gph. This means I will have 4 returns (2 with the overflows and 2 with the SCWD) using the sump water.

So I figured I need approx 1200 gph submersible to make allowances for head loss pressure etc.

Please let me know your thoughts

Thanks

[scottfarcuz]

1200 GPH of actual flow is going to be too much for your drains. First snail, or debris that partially blocks a drain would mean an overflow.

Based on all the rave reviews I don't think you are going to beat an eheim for a submersable pump.

[lapizzaro]

1200 GPH too much for 2 drains but that's what the manufacturer has rated them at - I'm confused?

[XtrmCHoPZ]

It could handle 1200 gph but you wount want that much anyways. Im going to be using an eheim 1262 as my return for my 125, i think it will be plenty. HAve your sump return at a lower flow, and your closed loop higher.

[scottfarcuz]

If the drains are rated at 1200 gph and something partially blocks one slowing it down to a total drain capacity of 1100 gph where do you think the other 100gph will go? Leave yourself some room for things like this.

I have a 210g AGA with dual megaflows. I have all 4 bulkheads plumbed as drains just incase something like this were to happen. I still only run about 1200gph actual flow.

[lapizzaro]

I never thought about that. Thanks. How is your closed loop setup?