I picked up a used sump for cheap recently and am having problems getting the flow right. The sump is a del ray model 125 with a grundfoss quiet one pump, the pump has no markings on it does anyone know what the gph for the pump is? For what i have found looks like 900ish at 4' of head, what size bulkhead do i need to run to it? I tried 2 3/4" but the sump goes dry before enough water returns, any help on pump size and which bulkhead to use would really help.
Thabks
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Thabks
Sent from my iPhone using MonsterAquariaNetwork app