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Thread: Is this normal?

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    RonsPlc's Avatar
    Join Date
    May 2015
    Gaylesville, AL

    Is this normal?

    I have been slamming my pool for the past week, and am seeing a VAST improvement in the water clarity...
    My question has to do with the CYA level... I don't see ANY CYA in my pool, however after a full day of sun, my FC only dropped 5ppm from 16 at 6am to 10.5 at 6pm.
    Without any measerable CYA, is this a normal drop? I expected the FC to be a LOT lower this evening.

    levels at 6pm

    FC 10.5
    CC 0
    TA 80
    PH 7.2
    CYA <20

    I have had 0 drop in FC in the overnight drop test for the past 3 nights straight.
    14600 gal Intex 24' Round 52" deep AG Pool (Heavily Modified)
    200lb sand filter w/2 speed 1.5/0.5hp pump
    Stenner 45MHP10 Liquid Chlorine (well... bleach) Injector. Borates added.
    K-2006 test kit w/Speedstir
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Midland TX

    Re: Is this normal?

    There really isn't a normal. You are doing well with that little loss, so you must be getting close. You can up it a little if you like and see if a little more Cya helps. Looks like you are just waiting to clear now.

    Welcome to TFP, and congratulations for taking the ball and running. Good job!
    TFP Moderator
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  3. Back To Top    #3
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: Is this normal?

    Mine loses 4 ppm daily and lots here don't consider that to be "normal".
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
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