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Pump starts but no water enters elevated tank
Is the pump's suction foot valve blocked, or are the ball valves in the wrong open/ closed positions?
No
Yes
Clean the foot valve and adjust the ball valves to the correct open/ closed positions.
Is the pump primed, and is there no air trapped in the suction or discharge pipes?
Yes
Contact the Gravity Water Team for assistance with an uncommon pump problem (vietnam@gravitywater.org).
No
​ Prime the pump and remove any trapped air.
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