mrbee2828
Aquarium Advice FINatic
I'm getting ready to finish up my sump setup and was cutting the return lines to size this morning when I started thinking about the check valve I bought. The line will be a 3/4" return run by a Seltz L 740gph pump at about 5'. The check vavle is spring loaded (it feels like it anyway). When actually pressing on the inner valve, to me anyway, it feels kinda' stiff. I'm wondering if that is going to hurt the pumps ability to return water or if I just don't know how much pressure the thing really outs out and it'll be fine. I don't know if I really need the check in the line but I was just over thinking the danger of a back flow even with a hole drilled at the top. Thoughts?