LA-Lawman
The room is working out great!! I really like having all the equipment out of the house and in the sump room. It gives the display tank more ability to shine. You don't have the noise of the pumps and water draining. As far as the pumps and drains go, everyhting is picture perfect. The drain from the tank to the sump room is gravity feed and the pump is amble to run wide open. Not necessary to adjust the flow via ball valve. The pump is flowing around 900 gph.
As far as fumes go, no issue. No issue with humidty as well. We actually installed a small AC unit to control the temp. When we were in the 100's, the room was like 77. It was cooler in the sump room than it was in my house!! The room stays around 77 and the water varies from 76 - 78. The AC actually keeps the water cool even with 2 250 watt MH lights!! I think with the AC, we lose more water due to evaporation but with an RO/DI unit, thats a loss worth having.