Return pump priming needed?

[banditpowdercoat]

Originally Posted by ALBERTA REEF

I took a look at your thread build. I think your pump is too small for your plumming. My thinking your flow was bare mine from the outlet. By adding the check valve choked it some more. Try turning off three of your return feeds and see what happens.There is a head chart on Reef Central.

http://www.reefcentral.com/calc/hlc2.php

Adding outlets does nothing to increase head pressure. Neither does pipe size. A 6" diam pipe will have the same head pressure as a 1" pipe of same height.