fishyscientist
Member
We are in the process of plumbing our 125g w/ 55g sump drilled tank with a closed loop system. Our overflow drains into 2-2" pipes that form a T and then drains to the sump. As of now, we have a submersible pump that runs 2400gph that is connected to the return pipe (1") that of course goes to the display tank. Is this 2400gph pump overkill? We are worried that the water will drain faster from the sump than it drains from the display tank. Does anyone know the math equations to accurately calculate what we need? I'm a microbiologist, not an engineer or physicist!!! So I have no idea how to do it! Thanks in advance!