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    rotor2's Avatar
    rotor2 Posts: 1, Reputation: 1
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    #1

    Jul 12, 2009, 12:39 PM
    Submersible pump well,Dole flow control valve whistling
    Hi
    I have recently bought a home with a well system which is new terrain for me.. The line from the pump to the pressure tank has developed an intermittent whistle/high pitched hum that I have narrowed down to the Dole flow control valve. The whistling has gradually become more constant...

    The flow control valve is 4 GPM
    I don't know what model of submersible pump I have, but believe it to be a 1/2 HP gould.
    I lose volume and pressure with too much demand on the system ( A sprinkler zone and running a tap in the home )

    I am wondering if my pump is weak or if perhaps my well cannot keep up with the demand.
    Any help /suggestions would be appreciated...

    Thanks Troy
    wellman614's Avatar
    wellman614 Posts: 1, Reputation: 1
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    #2

    Oct 14, 2010, 09:35 AM
    Dole Valves always squeal a little when used with a submersible pump. The valve will not allow the pump to supply more than 4 gpm (that is why its there). You should ensure that you are not asking for more than 4 gpm. If you are not asking for more than 4 gpm and still losing pressure most likely you need a smaller dole valve because the well is not able to deliver 4 gpm.
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