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Thread: Air Control Valve

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  1. #1
    DIY Junior Member
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    Default Air Control Valve

    What is a air control valve and what does it do on a bladderless tank? Is it mandatory?

  2. #2
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    It maintains the air cusion in the top of the tank and no, it's not strictly mandatory but without it you will have to drain the tank and re-establish the air cusion a couple times a year or more.

  3. #3
    Test, Don't Guess! cacher_chick's Avatar
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    There is more than one type of setup. Peter is referring to one that allows air INTO the tank. When the air bleeders are in the well, a float-style AVC works to allow the excess air OUT of the tank.

  4. #4
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    yes, I forgot those. But nobody has uses that set up around here.

  5. #5
    In the Trades Texas Wellman's Avatar
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    They are quite common in this part of the country. Most of the wells around here use regular galvanized tanks, probably 2:1 or more. If you see a sub/galvanized tank, it probably has a bleeder.



    Quote Originally Posted by Peter Griffin View Post
    yes, I forgot those. But nobody has uses that set up around here.

  6. #6
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    This had a steel tank and whenever the pump shut off it made a little pffft sound. My boss put in a bladder tank and it is getting air probably from the well as I have learned here. I guess we need to go back with a regular tank but I wondered where to buy the float style avc? Where do you get galvanized tanks all I see is steel with epoxy liner?

  7. #7
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    What is 2:1 or more mean?

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