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Thread: New AG owner - added bleach but still shows 0 FC

  1. Back To Top    #1

    Join Date
    Jul 2015
    Kennewick, WA

    New AG owner - added bleach but still shows 0 FC

    After reading the Pool School information and playing with the pool math calculator I determined that my new 5300ish gal Intex metal-frame pool needed about a quart of bleach to bring the FC from 0 (fresh fill) to 4. My husband ended up adding a whole bottle of bleach (121 oz) to the pool over the course of the day and the test strips (brand new) still register at "0" FC. We have even tried a different box of test strips (but all the other chemistries are reading so I'm sure it is not that).

    Am I missing a step here? We used shock last summer on our 1700 gal Intex but we would really like to use the TFP method if possible for our new pool.


    Intex 15x48 metal-frame, 1000 GPH pump

  2. Back To Top    #2

    TFP Guide
    jeffchap's Avatar
    Join Date
    Jun 2012
    Edmond OK

    Re: New AG owner - added bleach but still shows 0 FC

    Test strips (aka guess strips) are nearly useless for true water quality testing. You would be much better off at least getting one of the OTO drop tests, although even that is not generally endorsed here. You can get by with one in a pinch, but you should really invest in one of the recommended test kits here: Pool School - Test Kits Compared
    25000 gallon free-form gunite
    Jandy Stealth pump/CL340 cartridge filter
    Pentair IC40 SWG
    Pentair MasterTemp 250HD heater
    Jandy AquaLink RS automation

  3. Back To Top    #3
    TrevNJPool's Avatar
    Join Date
    Jul 2014

    Re: New AG owner - added bleach but still shows 0 FC

    Well if you added a whole 121 oz of bleach into 5300 gal of fresh fill water your FC should be around 15. You definitely need a good test kit which the TF100 sold at TFTESTKITS.NET definitely fits the bill. You can test all aspects of your water and really understand what is going on with your water chemistry.
    40x18 Lazy L Rectangle
    29500gal IG w/ vinyl liner
    HAYWARD S244T 300lb sand filter
    Hayward Super Pump 1 1/2hp

  4. Back To Top    #4

    TFP Guide

    pabeader's Avatar
    Join Date
    May 2015
    Cartersville Ga

    Re: New AG owner - added bleach but still shows 0 FC

    With a FC over 10 the strips usually bleach out and start to show as if there is no CL.
    Bob - INTEX 12x24 owner, 'New to me' Kreepy Krauly Sand Shark, Test kit: TF-100 w/Speed Stir

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