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Setting up a sump/ need help with return pump
- Thread starter rgarofalo
- Start date
You could use anything that pumps up to 300 gph at about a six foot head.
However,there are some other considerations. You may want the pump to drive other items, such as flow through a refugium, or some reactor such as a phosban reactor.
Always buy top quality. It's least expensive long term. For an internal pump, mounted inside the sump, I'd use something like an Eheim 1250. A Supreme Mag 3 or 5 would be my second choice, but I don't think they come close to the Eheim in quality. I'm not a big fan of Tamm, Rio, Seio, or Sen pumps, far too many problems for such a critical operation, but they might be ok for circulation.
For a pump mounted outside the sump, my first choice would be Iwaki, but there are several other good pump out there. However external pumps tend to push a lot more water and may overdrive your system, causing a flood. In other words, they can drain you sump, and fill the tank faster than the overflow can deal with it.
Be very careful with the CPR overflows. They tend to fail and cause floods. Always use them with an AquaLifter pump to keep them from trapping bubbles and breaking the siphon action.
However,there are some other considerations. You may want the pump to drive other items, such as flow through a refugium, or some reactor such as a phosban reactor.
Always buy top quality. It's least expensive long term. For an internal pump, mounted inside the sump, I'd use something like an Eheim 1250. A Supreme Mag 3 or 5 would be my second choice, but I don't think they come close to the Eheim in quality. I'm not a big fan of Tamm, Rio, Seio, or Sen pumps, far too many problems for such a critical operation, but they might be ok for circulation.
For a pump mounted outside the sump, my first choice would be Iwaki, but there are several other good pump out there. However external pumps tend to push a lot more water and may overdrive your system, causing a flood. In other words, they can drain you sump, and fill the tank faster than the overflow can deal with it.
Be very careful with the CPR overflows. They tend to fail and cause floods. Always use them with an AquaLifter pump to keep them from trapping bubbles and breaking the siphon action.
And you can always add a valve to control the flow if the return pump is too strong.
This may sound like a dumb question - but why are you setting up a sump on a 20 gallon? I was thinking about all those nanos that are like 24gallon aquapods and I don't recall any of them setting up a sump with it. Couldn't you use the space that the HOB overflow would be and place a hob skimmer there instead?