Hello! I have built a diy overflow box as well as weir and sump. 29 gallons tank and 10 gallon sump. Here are some pictures and roughly the return should have like 10 inches of horizontal travel through pvc and then like 2 ft-ish vertical travel. What gph would I need? I built it diy so I am unaware on how to calculate the incoming water volume.
The two pipes in the photo are both for incoming water to the sump, not return.
The two pipes in the photo are both for incoming water to the sump, not return.