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Thread: Howard Garrett - Hydrogen Peroxide (H2O2) Controls Mustard Algae in Pools

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    Howard Garrett - Hydrogen Peroxide (H2O2) Controls Mustard Algae in Pools

    ~26,000 gal (still dialing it in) / in-ground saltwater (Hayward T-CELL-15) / Blue Granite PebbleSheen / 2hp WhisperFlo pumps (main), 1.5hp WhisperFlo pump (waterfall) / Pentair DE filter / AquaLogic control / Polaris cleaner aka "Trackie" / Dallas, TX

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    JasonLion's Avatar
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    Re: Howard Garrett - Hydrogen Peroxide (H2O2) Controls Mustard Algae in Pools

    Hydrogen Peroxide and chlorine destroy each other quickly, so even if it works, it isn't very practical. The quantity required is extremely high, and then you will be using large amounts of chlorine to re-establish an FC level. Plus, there is no way it can stop the re-infection by pool toys problem, so it doesn't seem any easier. Again, assuming it even works.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Mod Squad tim5055's Avatar
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    Re: Howard Garrett - Hydrogen Peroxide (H2O2) Controls Mustard Algae in Pools

    He seems to think the chlorine generated by his SWG is less a chemical than that from a bottle....
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    bridgman's Avatar
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    Re: Howard Garrett - Hydrogen Peroxide (H2O2) Controls Mustard Algae in Pools

    I guess it might be more practical if you were running pool-store (very low) levels of chlorine... not much to destroy and not much to re-establish... which I guess is why they said chlorine wouldn't kill mustard algae in the first place ?

    It all fits

    Hydrogen peroxide is recommended as a disinfectant each time you drain/refill a wooden hot tub if you don't want to use bleach or any form of chlorine. Seems to work OK but reading between the lines they all seem to be saying "you might as well just use bleach".
    Cedar hot tub, 680 US gallons - Snorkel wood-burning heater, canoe paddle, "offline" Intex 1000 GPH pump/filter with skimmer

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