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Thread: Evaporation?

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    Mar 2015
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    Evaporation?

    Just curious, how much evaporation should I experience on average? I have an approximately 18,000 gallon pool and I notice about an inch drop in water level per week when there is no rain. I don't have any leaks that I'm aware of. The plumbing is not leaking in any visible areas. Could this be evaporation, or should I be concerned about a leak?

    Thanks!

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    JayBauman's Avatar
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    Re: Evaporation?

    That's consistent with what I observe with my pool, as long as it is warm and dry. If it's still cold outside, then I might get a bit suspicious.

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    Kiss4aFrog's Avatar
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    Re: Evaporation?

    Welcome to the forum Gabbagabbawill

    Do you cover your pool ?
    It also makes a difference if your in the city or out in the country. I have a pretty good wind being out in the open so 1" a week doesn't sound too bad. I keep mine covered.
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    Patrick_B's Avatar
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    Re: Evaporation?

    Not unexpected. Depending on wind, water/outdoor temps it can vary, but an inch a week, pretty normal.
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    JasonLion's Avatar
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    Re: Evaporation?

    We have humid summers with hardly any evaporation. But in the spring and the fall when the humidity is low there can be a surprising amount of evaporation.
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    Richard320's Avatar
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    Re: Evaporation?

    Welcome!

    I've been losing a lot lately, too. Besides being warm, it's been breezy, and wind affects evaporation a lot more than temperature in my experience.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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    Mod Squad pooldv's Avatar
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    Re: Evaporation?

    My PB installed an autofill on our pool. He said pools with autofills don't leak or evaporate.
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    Re: Evaporation?

    Quote Originally Posted by pooldv View Post
    My PB installed an autofill on our pool. He said pools with autofills don't leak or evaporate.
    Your PB was right! Mine hasn't lost any water at all, and my PB also installed an autofill.
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