I am thinking of adding an additional 1, if not 2, more return jets to my pool. I currently have a 30' round x 54" deep round pool (approx 23,000 gallons). It only came w/ 1 return jet & i have a back pressure of 15 - 17 psi on filter (during vacuum to waste it runs around 10 psi). Anyone else ever do this? I am also wanting to add an actual thru the wall light. Any suggestions?