suddenly my drain is not keeping up with the intake pump.
I have a 75 gallon tank with 30 gallon sump under the main tank. The system has been running fine for 18 months or so. The main tank drains via an overflow in the corner and gravity feeds into the sump where the return pump feeds the water back to the main tank. While doing some routine maintenance, I noticed the water level in the main tank creeping up. I assumed something was partially blocking the overflow drain. I shut down the pump, disconnected the drain and blew through the line. There was no blockage in the drain. There also is no blockage from the main display through the grate into the overflow sump. There is a small tube sticking out of the top of the over flow drain, which I assume is intended to allow air into the drain. That tube is not blocked. Nonetheless, the drain still cannot keep up with the pump.
It must be something to do with the drain, but it’s a gravity system, so what could it be? Any thoughts would be appreciated. Right now I have the intake flow restricted with a temporary clamp to maintain an equilibrium between intake and drainage.
Thanks.
It must be something to do with the drain, but it’s a gravity system, so what could it be? Any thoughts would be appreciated. Right now I have the intake flow restricted with a temporary clamp to maintain an equilibrium between intake and drainage.
Thanks.
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suddenly my drain is not keeping up with the intake pump.