MAR Pump not Working

[kaijor]

I put in MAR 3181 into my 32 biocube today but the pump isn’t pumping any water. I’m thinking it might have to do with the tube itself possibly. Anyone else have this problem? I put in the back of the tank. I had a pump in the back there before and it worked fine. Anyone have any suggestions?

 

[rvitko]

How far is the head pressure? Try the pump stand alone, the usual issue in this sort of install is head pressure, the included 12V power is only suitable for 2 ft of headpressure, it is intended for in sump or beside the sump use. For a higher head pressure application you need the optional 24V power supply 6095.240. If the pump works just in a bucket or in the tank with hose detached, this is likely the culprit.