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Thread: Filling drained pool with a little green water in the bottom

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    Filling drained pool with a little green water in the bottom

    My friend emptied his pool for repairs. After the repairs, we got some rain and it left about 6 inches of water in the deep end of the pool. That water has since turned green. He wants to refill his pool, does he need to drain the green water before starting? Or would you just fill the pool, add chemicals, and run the filter for a while? Thanks.
    17,000 gallons, IG, plaster, cartridge. Installed in 2013.

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    Re: Filling drained pool with a little green water in the bottom

    Seems to me it would be prudent to kill the algae before adding more water and spreading it around.
    In ground, 14,000 gallon, white plaster, unheated, stone waterfall, DE Filter, Rainbow 320 Cl, Polaris 3900, FloVis flow meter, F100 test kit, Circupool RJ30+ SWG, Circupool VJ1/Speck Badu EcoM3V variable speed pump.

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    Mod Squad pooldv's Avatar
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    Re: Filling drained pool with a little green water in the bottom

    If a sump pump is available then I would pump it out just for good measure. But, pumped out or not, be prepared to SLAM the pool as soon as it is full. Here's how, Pool School - SLAM - Shock Level And Maintain
    Last edited by pooldv; 02-05-2016 at 11:21 AM. Reason: accuracy and clarity
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    Re: Filling drained pool with a little green water in the bottom

    Fill the pool as is. You cannot rid a pool of algae....even by almost a complete drain. The conditions for algae still exist in your pool whether or not you drain off the water.

    So to answer the question correctly, we need to know the size of your friends pool so we can suggest an addition of Clorox while the pool is filling. Your friend will then need to SLAM the pool per the article in Pool School.

    In short, draining or not draining that remaining water makes little difference.....you'll still get algae unless you SLAM the pool.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: Filling drained pool with a little green water in the bottom

    Thanks for the advice everyone.
    17,000 gallons, IG, plaster, cartridge. Installed in 2013.

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