I'm trying to deciide where to put spray bars so that I get a good amount of water moving in several directions, but have the least visible amount of pipe.
so, looking at my tank, I've got room for 1/2" sch 40 to fit under the plastic band and not be easily visible from the outside (hidden by the band) ... so I'm thinking I can run a pipe down the center brace to a Tee and then along the front of the tank behind the plastic band, with holes drilled in the 4ft front segment every 4-6" aiming in various directions.
then I was also planning on running a spray bar along the back, behind the rocks, about 8" from the bottom... again drilled every 4-6"
so these two bars will run off 1 return pump from the sump, probably ~900 gph
and then I plan on hooking up a scwd to two large diameter outlets, and have each in the back corner... run off another 900 gph
now you might be saying, 1800 gph
is high for a 90 gallon tank - but I plan on using power-head style pumps due to budget reasons, and they don't take head pressure (spray bars, etc) too well, so I figure on getting about 600 gph
out of each, which should be a good turnover
thanks in advance.