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Thread: using pool math without FAS/DPD Test ?

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    velorajodene's Avatar
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    Jun 2016
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    Seattle WA
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    using pool math without FAS/DPD Test ?

    Hi, This is my first time owning a pool. I have read and re read probably the entire forum, very informative. I did not know a thing about pool chemicals when we bought the pool at Wal-Mart. I Bought all HTH products. One lb bottle of PH increaser, One 5 lb. bottle of chlorinating tabs, One qt. of algae guard 60 and a bag of shock treatment.
    Since finding the forum I bought 5 jugs of bleach and removed all chlorine tabs. I first bought the HTH 2 way test kit then went back and got the HTH 6 way test kit. My problem is, neither one tests for FAS/DPD and also, I've almost used all of the CYA regent.
    My pool water is currently clear. Since I'm down to so little CYA, I'm hesitant to do any more testing until I absolutely have to. (I tried to use the pool math but the chlorine number was just from the basic test kit so I'm thinking it was not accurate.
    My question is, is there a way to use the pool math calculator without the FAS/DPD reading. I can't get a new test kit yet because I've already spent so much on the pool and other equipment so far.
    Thank You so much,
    Lori
    Orting, WA
    5500 gal. AG,8' by 48" AG,cartridge filter , type c, polygroup
    rx 1000 pump, 1single speed,install 6-8-16
    hth 6 way test kit,TF-100 ordered, city water, no restrictions

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    OTPirate's Avatar
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    Re: using pool math without FAS/DPD Test ?

    Just get the FAS/DPD test, not a whole kit.

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    velorajodene's Avatar
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    Re: using pool math without FAS/DPD Test ?

    Thanks, I'll so that.
    Orting, WA
    5500 gal. AG,8' by 48" AG,cartridge filter , type c, polygroup
    rx 1000 pump, 1single speed,install 6-8-16
    hth 6 way test kit,TF-100 ordered, city water, no restrictions

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    TFP Guide
    triptyx's Avatar
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    Tucson, AZ
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    Re: using pool math without FAS/DPD Test ?

    To expand on OTPirate's answer, you can just get this test here if all you need is a FAS/DPD: TFTestkits.net
    8,500gal plaster in-ground with attached spa, two floor drains, one skimmer. Chlorine, City Water.
    Pentair WhisperFlo 1hp Pump, MagnaTek Midcentury EPlus motor, Pentair CleanNClear 200SF Cartridge filter, Purex Triton MiniMax 250 Gas Heater, Pentair SunLite, AutoFill.
    Kreepy Krauly Cruiser, TF-100 with SpeedStir. :D

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    velorajodene's Avatar
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    Re: using pool math without FAS/DPD Test ?

    Thank You triplex, I have just ordered it.
    Orting, WA
    5500 gal. AG,8' by 48" AG,cartridge filter , type c, polygroup
    rx 1000 pump, 1single speed,install 6-8-16
    hth 6 way test kit,TF-100 ordered, city water, no restrictions

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