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Thread: algae

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    what is the best way to get rid of yellow algae, i brush it down and the next day it's back, i have an in-ground pool with plaster???

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: algae

    You must provide more info to get good advice. Chlorine is the answer but how much and what kind requires more input on your part. Posting a full set of test results will get you the most accurate answers.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana

    Re: algae

    Quote Originally Posted by mcmacky
    what is the best way to get rid of yellow algae, i brush it down and the next day it's back, i have an in-ground pool with plaster???
    Chlorine. Lots of it for several days. Read for more info.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Threads merged for consistency.

    what is the best powder chlorine??

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    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: algae

    You don't necessarily want to use powder.

    I would suggest you post a full set of results so we can advise you better. We cannot advise you what kind of chlorine to use without knowing what your current levels are.

    Also, please update your profile to create a signature - we need to know your pool specifics/equipment. This way, you won't have to keep repeating it and we won't have to search for it.

    Go to User Control Panel, the Profile, then Edit Signature. You are allowed 5 lines of text - size, type of pool, surface, various equipment.

    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    Perfectly Clear Pool Service, Find me on Facebook!

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    Join Date
    Jan 2009
    Cupertino, CA

    Re: algae

    Powders generally add other stuff along with chlorine. Whether that other stuff is bad or okay depends on what's already in your water. I second the motion for a full set of test results (FC/CC/pH/TA/CH/CYA).
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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