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Thread: Foamy water

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    Foamy water

    Hello, just want to start off by saying I LOVE THIS SITE! Been using it for 3 years now and never needed to post because the answers were always right here. With that being said, I am having the worst time trying to open my pool this year. So now I find myself in need of some help. I know I have come to the right place. After having a pump motor failure, I was lucky enough to be able to pick up a brand new system. Got it hooked up and started filtering and now I have foam in the pool. I understand it is sucking air from somewhere, I am just baffled as to where. No leaks we can see. My question is could it be coming from the skimmer box somehow? Really want this foam issue eliminated. Thanks in advance for any advice.
    10000 gallon AG, Hayward filter with variable speed pump. TF100

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    Join Date
    Feb 2008
    Flower Mound, TX

    Re: Foamy water

    Welcome to TFP!

    Can you give us a full set of test results to look at?
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Foamy water

    Did you add any algaecides? They can cause foam.

    Is the foam coming out the returns, or just on the surface?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Foamy water

    Foam is just on the surface. No algaecides. Under the impression thats a no-no.
    10000 gallon AG, Hayward filter with variable speed pump. TF100

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    Re: Foamy water

    Also can't really give any test results as I am shocking, and just added cyanuric acid, etc... to open. Don't think they would be accurate.
    10000 gallon AG, Hayward filter with variable speed pump. TF100

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Foamy water

    Foam is usually the result of the combination of a thin layer of organic oil on the surface, often from pollen, and a source of air bubbles. Eliminate either of the two and the foam will go away. Chlorine will normally break down organic oils, though sometimes that process can take a while. Bubbles can come from several places. If they are coming out the returns you so see if you can fix that. Other sources of bubbles are not usually worth worrying about.
    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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