defchild84
New member
I would recommend plugging this hole. Reason being that if power was lost to the return pump. The tank will siphon all the water from the tank to the sump up to that point. (unless you use a backflow valve) But to me not worth the risk. :eek2:
so if that is the return, then the other two would be strictly for circulation? if so, the return and the other two would be run off of two diff. pumps? and would it be beneficial to keep it, even if I use a backflow? I really have a desire this time around to not skimp on flow , and if I can, not use any additional pumps inside the DT as to not litter with cords and take up precious space :beer: is that possible?