How much flow through your sump?

sean obergfell

New member
Hello all,
I have two return pumps on my 150 gallon reef. One is connected to a Sea Swirl and the other is just a return hole.
I am thinking of turning the one (return hole) off and turning it into a closed loop with a second Sea Swirl....

which means much slower return through sump and more flow in display tank.

What do you pros think?

Thanks
 
What's the gph rating on the two pumps? What do you have in the sump? What's the layout like (baffles?)

Having two return pumps is nice from a redundancy perspective.
 
also how big is the sump, and is your overflow a full siphon or is there air mixing going on? and how many gph is your skimmer pump rated for, do you have any macro/dsb in sump? tell us more.
 
You may get different opinions but I prefer a lower flow through my sump... less noise, less heat, less electric and more reaction time with your skimmer. I have approximately 300-400gph going through the sump on my 120gal.
You should take into consideration the turn over of your skimmer pump and also your sump design.
 
Thank you for all the interest....
the sump is a basement sump..150 gallon rubbermaid ..ASM G4, live rock, carbon and GFO reactors....150 Two little fishes, have a cheato chamber but at the moment not enough nutrients to keep it growing...return pumps are Mag 24 goes to the 3/4 Sea Swirl.(up 10' horizontal 4') and the second return pump is a Mag 18 (up 10')
1500 gph glass holes box with 2 1.5" return hoses.
 
What i want is a closed loop 1" sea swirl, and that would take my Mag 18 out of the sump. then I will have 2 Sea Swirls with greatly increased flow.
 
yeah, I would probably do that if I were you but you may find that you'll need a powerhead in the sump to keep flow over your chaeto. that is a pretty big sump.
 
I have about 800GPH through my sump. Mine is a 75 gallon sump for my 90 gallon display.

Just an observation, a mag24 and a mag18 are a lot of wattage and quite a bit of head loss. You could probably reduce your electric by half by switching to an external pressure rated pump, and actually increase your flow.
 
I've only used blueline pumps and I've been really happy with them. Quiet and reliable. A blueline 70bHD should get you around 1100+ with 10' of head and 1.5" plumbing. I think that pump is about 250+ watts. I have the 55HD, which gets about 800ghp at 14' head with 1.5" plumbing. That one is about 180 watts.
 
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