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Thread: Bucket test accuracy

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    Join Date
    Jun 2016
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    Boston, MA
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    Bucket test accuracy

    I am in Massachusetts and the night has been pretty cold. Low 40s. Did a bucket test last night and noticed the pool water dropped about 1/16 in, but water level in bucket dropped very minimum. Are there sometime bucket test is not so accurate?

    thanks.
    Massachusetts
    Vinyl Salt Pool 2011; IC40 SWG; Raypark gas heater; Sta-Rite Dynapro pump; Sta-Rite System 3 Filter S7M120; Pool size: app 25000 Ga
    first time pool owner. First year too.

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    Mod Squad JVTrain's Avatar
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    Re: Bucket test accuracy

    If you're not seeing a significant difference, go longer on the test. See how much you lose over several days or a week.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
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    GaryT58's Avatar
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    Re: Bucket test accuracy

    Evaporation can be different in certain conditions. For example, if windy weather your pool will have a much larger surface area exposed to the winds so it could lose a little more. The lip of the bucket can effect the airflow over the water (unless it was filled to the very top). And placement of bucket as well with wind - i.e. are winds being diverted in area where the bucket is placed. So testing over a longer period can help.
    38'x16' Fiberglass pool - 3.5' - 8' deep - 19,000 gallons. AutoPilot Total Control SWG (RC-52 cell), Pentair SuperFlo VS, Pentair SD70 Sand Filter, Coverstar Automatic Cover, 10' board, PAL Treo lighting, Polaris 9550 Sport robot, Lamotte ColorQ Pro 7 test kit.

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    Boston, MA
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    Re: Bucket test accuracy

    Thanks. I will monitor a little longer.

    I always remember reading a post here saying it is not worth the effort to identify any leak fewer than 1/8 in per day. The article said it may end up spending more money with little result. Not sure if this is something the experienced pool owners here agree?
    Massachusetts
    Vinyl Salt Pool 2011; IC40 SWG; Raypark gas heater; Sta-Rite Dynapro pump; Sta-Rite System 3 Filter S7M120; Pool size: app 25000 Ga
    first time pool owner. First year too.

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    Mod Squad pooldv's Avatar
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    Re: Bucket test accuracy

    Evaporation is typically 1/8"-1/4" per day. So, I don't think you could eliminate evaporation as a source if that is all you are losing. I also don't think you would even notice it on your water bill.
    TFP Moderator
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