Return Pump Recommendation Poll

[The Grizz]

Waveline DC5000 would be my choice, go to www.rlss.ca to check it out. I believe or a least hope Mr. Dave @ concepts will be bringing some of these in as well as the larger size pump that is supposed to be coming out.

[lockrookie]

i run a 4000 on my 90 but i would go with a bit less for flow than what your planning your sump may not handle that much flow through it try an ehiem 3000 would be good for that tank. ideal flow is 5 to 7 times through sump total water volume. so if you have 90 blus say 10 in sump makes times 7.. you wouldwant a pump that could flow 700gph ish at 4 or 5' of head. keep in mind as well what your overflow ccan handle in terms of flow as well if your overflow can only handle 600 gph and your pushing 700 things could get wet.

[ensquire]

Originally Posted by lockrookie

i run a 4000 on my 90 but i would go with a bit less for flow your sump may not handle that much flow through it try an ehiem 3000 would be good for that tank. ideal flow is 5 to 7 times through sump total water volume. so if you have 90 blus say 10 in sump makes times 7.. you wouldwant a pump that could flow 700gph ish at 4 or 5' of head. keep in mind as well what your overflow ccan handle in terms of flow as well if your overflow can only handle 600 gph and your pushing 700 things could get wet.

Do you run your 4000 wide open or throttled back ???
Using your formula, the 4000 would work on mine, as it calculates out at around 660, using RC calculator.

[lockrookie]

Originally Posted by ensquire

Do you run your 4000 wide open or throttled back ???
Using your formula, the 4000 would work on mine, as it calculates out at around 660, using RC calculator.

wide open my over flow boxcan handle 1200gph

[ensquire]

Originally Posted by The Grizz

Waveline DC5000 would be my choice, go to www.rlss.ca to check it out. I believe or a least hope Mr. Dave @ concepts will be bringing some of these in as well as the larger size pump that is supposed to be coming out.

HMMMMMMMMMM nice pump and DC to boot, controller would be awesome, but I wonder if it would be big enough with only 1320 GPH. There would be a fair bit of head loss and I think I should be looking for 10x turnover. Yes - No ???

[gregzz4]

Have you looked at this yet ?
Not all pumps are listed, but it's still useful

[ensquire]

Originally Posted by gregzz4

Have you looked at this yet ?
Not all pumps are listed, but it's still useful

I was using that very calculator, It is to bad it didn't have more pumps listed.

[Myka]

Originally Posted by ensquire

I think I should be looking for 10x turnover. Yes - No ???

6-7x turnover is ideal. Keep in mind the purpose of the return pump is to feed the skimmer (in the sump), not to provide flow for the tank.

I have a Poseidon PS3 on my 90, and it is a good match. I'm replacing this tank with one that is about 100 gallons, and I will continue to use the PS3. They are great pumps and deadly silent. These pumps are now called Blueline Velocity T3. If you want an internal pump though, I would recommend the Eheim 1262 or the Eheim Compact 3000 (or maybe the 4000? I don't have time to do the math for you) if you want a cheaper model.

[lockrookie]

for the 10 times flow is mainly for sps tanks and you can achieve that with a couple powerheads.. i almostmade this mistakewith the 180 i was going to bug a pump to double the pump o had now plus then i re read my old build smacked my head or being too stupid and now im planning either a ehiem 5000 or quiet one 6000

[Myka]

Originally Posted by lockrookie

for the 10 times flow is mainly for sps tanks and you can achieve that with a couple powerheads..

Flow through the sump has nothing to do with what type of corals are kept. As I said above, the purpose of the return pump is to feed the skimmer water to process. The skimmer can only process so much water, so increasing flow through the sump does no good. If you have a grossly over-sized skimmer then increasing the flow through the sump could possibly achieve a bit heavier skimming, but that would be negligible.

Powerheads are for provide flow for the corals and preventing detritus settling. For SPS corals you're looking in the 50-100x turnover range where LPS and softies are happy with 10-25x turnover.