Got my plumbing for behind the background figured out. This is one side I will be running dual Eheim 2217s so It will be mirrored on each side. Spray bar sits just under the water like and the intake sits about 6" off bottom so it won't suck up substrate. Intake is 3/4" schl 40 PVC
and output is 1/2" schl 40 PVC
. Did a test and it works!