I have the plumbing done. I currently have two 55s and the 115 "online". the wet/dry is working well(3rd pic). I made some spray bars/under gravel jets for the returns. Its made of 3/4 pvc Ts with caps on the top and a slit cut in the cap.(pics 1-2) Last picture are the returns valves for each tank. they are mounted just below the ceiling.










All you do is when you are in a forum at the top click new thread an wha-la.