Ok, so I've started the tank build and I'm running my pump in the tank and through the scupper in the Tarpon. I went down to OEX and picked up a 3/4" check valve for the pump so it won't drain. Problem is with the valve screwed on to the pump and the tank is full it will not pump any water. I'm running a 6v battery and it works very nicely without the check valve but as soon as I put it back on the pump can no longer over come the check valve and the pressure from a full tank. Would I be better off running a 12v battery having the check valve in place?
Was going great till I tested it. HELP!
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