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Thread: Auto fill/Water Level/Overflow issues

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    Auto fill/Water Level/Overflow issues


    My in-ground pool is configured with an auto fill valve. When we first moved into the house, it was running constantly. I have turned it off until I have a chance to replace the shut-off mechanism.

    However, when messing around with the auto fill, I noticed that the overflow is below the ideal water level (or at least how I perceive it) for the skimmer. Meaning, if the water level rests below the overflow, the water level is about 2 inches below the hard water ring around the below, and is just barely above the bottom lip of the skimmer cavity.

    I also might mention that there was a wine cork shoved in the overflow drain, though I don't think it was making a good seal based on how quickly the water would drain.

    Any ideas? What is the proper water level relative to the skimmer? Is plugging the overflow acceptable? If so, is there a better solution than a wine cork?

    Thanks in advance!


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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Auto fill/Water Level/Overflow issues

    Proper water level is roughly in the middle of the skimmer. My 2 houses have never had the overflow actually connected to anything, they have been sealed from the outside. You could try a rubber plug to get a better seal.
    Jason, TFP Moderator
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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Auto fill/Water Level/Overflow issues

    Plugging up the overflow is just fine. Most people don't have an overflow system to begin with. On the other hand, extending it up an inch or two is probably fairly simple. Some overflows are even adjustable.

    Depending a little on the skimmer design you generally need at least an inch of water above the bottom of the opening for correct operation. Anything from there up to not quite touching the top will work.
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