My TapeTech Loading Pump will not prime or pump joint compound.

If your TapeTech Loading Pump - 72TT, 73TT, B74TT or B75TT - will not prime or pump the joint compound it is usually due to one of two possible causes.

The first reason could be that the valve disc located just above the screen is blocked and cannot open to allow the joint compound to pass into the pump cylinder. The other reason is that debris or dried joint compound has collected in the foot valve screen and is blocking the flow of joint compound. 

The best way to fix this issue is to spray water directly into the screen/foot valve to loosen and remove any material. If pressured water is not available, try placing the loading pump into a bucket of clean water, and pump water through the pump until it will prime. Drain the water and place the loading pump back into the bucket of joint compound and then prime with joint compound.

TapeTech offers a convenient maintenance kit, 501H1, to help you keep your loading pumps in the best working condition.