Originally Posted by craigbooker
The drain pipe PVC
is 1 1/2 inch which narrows down to 1 inch to go inside the bulk head. The PVC
pipe coming out of the bulk head underneath the tank is 1 inch.
Okay sounds like your flow is around 800-840 gph
so with that in mind i'd get a return pump rated for 800-950 gph
or less due to head loss you dont want to out run your drains or you risk flooding the main tank.
Most people create their own problems by not following the basics and refusing to stock appropriate to their system. Gregcoyote 2013
SPS = Stability Promotes Success