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Thread: Dealing with ammonia

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    Mod Squad zea3's Avatar
    Join Date
    Jul 2009
    Houston, Texas

    Dealing with ammonia

    Well, last week when I tested I discovered I had 0 CYA. I stopped tending my pool in October when my mother became ill and passed away, so there has been plenty of algae building up. I was out of CYA so I just put in 3 jugs of bleach until I could get more supplies. I was wondering if I had ammonia so I bought a test kit for that today and it reads positive 1.0 ppm. Yay.

    My question is, do I attempt to add CYA first or do I shock to get rid of the ammonia then add the CYA?

    For those trying to crack the CYA conversion mystery, the weather over the winter was mild, with only 1 light freeze, and several warm days in the 70s.
    TFP Moderator
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Aquatica's Avatar
    Join Date
    Jun 2010
    Nassau, Bahamas

    Re: Dealing with ammonia

    Very sorry to hear about your mother. I don't know anything about ammonia. hope someone can help you. take care of yourself.

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    Join Date
    Feb 2008
    Denton, TX

    Re: Dealing with ammonia

    Shock it first and hit it hard. It takes a goodly amount of chlorine to clear the ammonia. I would say that you should probably wait until you are free of NH3 before you add more CYA.

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Dealing with ammonia

    I don't know the absolute answer but it make sense to me, too, to shock without CYA. Like 257 says, you will be consuming quite a bit of FC so make it as "effective" as possible with no CYA.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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