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Thread: eliminating localized algae hideouts

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    Join Date
    Aug 2009
    SF Bay Area (Lamorinda), CA

    eliminating localized algae hideouts

    We have a few deferred maintenance projects in our 1950's era fiberglass IG pool - the fiberglass has some chips and cracks and some of the tile grout below the waterline has been eroding away. So after a lot of bleaching, brushing, and filtering to get our pool looking algae-free with nice clear looking water and a FAC of around 5, I still see what looks like green algae hiding in the eroded tile grout and mustard in the fiberglass chips along the waterline. Any suggestions for keeping these things in check until we get the fiberglass and tile issues taken care of - I've brushed out the grout with a bleach-soaked old toothbrush before but am afraid I'll end up eroding away more of the grout.
    1950's-era 17K gallon formerly fiberglass, newly replastered IG rectangle (~15x30'),
    Hayward S244S Sand Filter with Franklin Electric 0.75 HP motor and WhisperFlo WFE-3 pump
    Clear ThermaTex bubble cover
    Manual vacuum

  2. Back To Top    #2

    In the Industry

    X-PertPool's Avatar
    Join Date
    Jun 2009
    Exeter, PA

    Re: eliminating localized algae hideouts

    You might want to try a Yellow Treat or Green Treat. Regardless I only use this product when the FC is on target and algae still forms in some areas, which is kinda the problem you have. It will create a demand for chlorine since it will convent the current chlorine to bromine which isn't UV stable so having a chlorinator of some sort will help you greatly when using this product. There is also Yellow Out but I find it to be more expensive than Yellow Treat.
    X-Pert Pool Service
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    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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