Am trying to figure out what this means....I have a basic idea, however, not sure if it is correct....
I am looking at getting the Rio Plus 2500 - 748 gph
to act as a return from sump to a 75 gallon.
RIO states that "Max Head" is 10 feet.....is that the height it can push water vertically back into the tank? I wonder how this effects the gph
? the total height of the tank is about 40 inches approx.