Wanna get my dimensions right. Doing a 90 gallon with a 20 gallon sump and trying to figure out my bulkheads. Got a Rio 3100 as the return and with a 4' head I wanna do around 600gph. Right now I have two 3/4" and one 1" bulkhead. Wanna use the two 3/4" bulkheads for intake and the 1" for return. Going the Herbie method for in, but my question is, since the flow of a 3/4" bhead is about 300gph, will the other one be making the slurp noise since its almost taking in as much of water as the first one?
Should I go back to the LFS
and exchange one of the 3/4" for a 1"?