Pump Priming (CGS only)
Purpose: All fluid is removed from the pump head prior to shipment from Haskris. When starting the
pump, it needs to be filled with fluid. This process is called priming the pump.
When the piping is full of fluid, the pump suction line is “flooded”. In some cases, this flooded suction
will automatically prime the pump. When the unit switches to city water backup, the pump will run. If
the controller display shows the pump generating pressure, then the pump is primed.
If the controller display shows a low pressure <10 psi, then the pump did not automatically prime.
Follow the procedure below.
1. Identify the priming plug on the face of the pump head (Figure 4).
2. Use a wrench or hex wrench to loosen the priming plug slightly. The plug should remain
threaded into the port, but air and liquid should be able to escape.
3. Allow air and a small amount of fluid to escape.
4. Tighten the priming plug.
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