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Old 05-25-2007, 10:44 AM   #7
Bill
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Originally Posted by hal View Post
Also, before it will pump water the remaining space in the water storage tank has to be pressurized. Depending on the amount of this air space on the top of the tank, it could take a couple minutes to begin circulating. And of course a faucet should be opened to allow the air to escape.
Hal -

I have to take a minor exception here. The water storage tank is NOT pressurized. In fact, the tank is vented to the outside at all times. The water just lies there in the tank, and flows to the pump because of the suction that the pump creates when it runs.

So, as others have said, the pump should run when the switch is turned on, assuming that a faucet (any faucet) is turned on. If the pump does not run, then either it is not receiving 12-volt power, or the pressure switch in the pump has failed. I would give the hose end of the pump housing a good solid rap with a screwdriver handle in case the switch has stuck, but there isn't really any other high-tech solution.

By the way, Shur-Flo makes rebuild kits for these pumps, which may include a new pressure switch. Rebuilding is easy.

Bill
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