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Old 09-13-2009, 10:11 AM   #1
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Well tank installation...

i need to install a new well tank. what is the proper way to drain the tank and not have water all over the place?

also my setup has 2 switches....one by tank and one on pump. (pump is installed in house) is this necessary? can i disconnect the one at pump and just use tank??


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Old 09-13-2009, 02:17 PM   #2
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I'm guessing you mean a bladder tank. On mine I have a spigot on the tank's tee. I hook a hose to it and run it to a drain. One pressure switch is all that is needed.


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Old 09-14-2009, 02:40 PM   #3
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There should be a drain cock on the pipe coming out of the low port of the tank. Shut off the breaker to the pump. Flush a commode or open the sink faucet to take the pressure off of the tank, then open the drain with a hose to direct the water. My system has the pressure switch on the pump. I've seen them on the pump or on the tank, never both. Perhaps somebody replaced the pump with a unit that had a switch already on it. You should only use one switch. Save a bucket of water in case you need to prime the pump after your tank replacement.
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Old 10-01-2009, 07:11 PM   #4
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Only one pressure switch!

You should have only one pressure switch near the tank. The second one on the pump probably came with the pump. The wires from the tank probably go to the pump pressure switch and are connected to the motor side on the switch, meaning this switch is doing nothing to control the pump, it's just acting as a junction point for the wires. Any other hookup is improper.

Porky, MGWC
"NGWA" Master Ground Water Consultant
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