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Kurt Becker

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Dramm Staff
Posts: 177
Reply with quote  #1 
Sometimes the BP-4 can develop an air lock in the pump that prevents the unit from priming or building pressure.

To correct this, remove the light blue, clear plastic cap on the front of the unit. Inside is a yellow priming ball. Depress this several times to force liquid into the pump and expel air.

The BP-4 should pressurize after this has been done.

Kurt Becker
Dramm Corporation
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