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Prime A Well Brass Gas Check Valve [2012-02-07]


A well pump sucks water out of the well and lifts it to ground level for irrigating agricultural fields or supplying potable water to buildings through pipes. Priming means making the water pump fittings air free. Well pump prime losses occur due to defective foot valves, Check Valve or pipe leaks. Without prime, the pump will run, but the water delivery stops or low water pressure ensues.
1 Pour water into the pump inlet source or into seperate pump regulator. Never run a pump motor without priming it with water first. The water source piping should be filled with water up to the point of the pump and water outlet.
2 Increase the pressure on the regulator of the pump motor gradually. The water level will begin to decrease as water enters the well slowly. This is the loss of prime. The Brass Check Valve is in place to prevent water from being siphoned back into the well so the regulator pressure will have to be high enough to test the loss of prime level.
3 Adjust the regulator pressure to match loss of prime point. Regulator pressure should be set at least 5 psi above the point at which the water receded into the well. This will help the check valve work to prevent prime loss when the pump is on and when it is off.
4 Prime the well. The check Brass Gas Valve should help prevent water from running back into the well as ground water is being pumped toward the surface.