FishFace NJ build

fishface NJ · Sunday at 2:56 PM

I have 1 (3/4") return at the sump that feeds 2 returns to the display and each are 3/4". So are you telling me that I could have used my previous return pump from my 40B build which was a Syncra SDC 6.0 (530 - 1450 gph) on my current tank?

redfishbluefish · Sunday at 3:13 PM

fishface NJ said:
I have 1 (3/4") return at the sump that feeds 2 returns to the display and each are 3/4". So are you telling me that I could have used my previous return pump from my 40B build which was a Syncra SDC 6.0 (530 - 1450 gph) on my current tank?

Might be a little confusion over "return". I think what you're saying is that your pump is with 3/4 inch pipe that pumps up to your DT,,,,,one pipe. Coming off your DT (assuming through some overflow) are two, 3/4 inch pipes draining back into the sump. Each of those drain lines won't ever see anything close to 700 gph. I'd be surprised if they're seeing 400 gph each.

Let's do a little more discovery....

1. What pump are you using.....you could calculate head loss knowing the length of the pipes and number of elbows.

2. What overflow are you using? I know my overflow is rated at 1500 gph, and I'm not near that much. I have two, 1 1/2 inches drains coming off my overflow.

That said, if flow was too high, you could always put in a manifold from your return pump....albeit, just one valve!

fishface NJ · Sunday at 7:37 PM

The Jebao MDP-10000 DC Pump maximum flow rate of 2,641 GPH
Sump pump 3/4" silicon tubing that connects to hard pvc. The 3/4" PVC splits to 2 returns
(5) 90 degrees elbows
51" horizontal and 65" vertical 3/4" pvc pipe
Bean Animal Modular Marine 1600 gph 1" drains