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Thread: CYA levels

  1. Back To Top    #1

    Join Date
    Apr 2009
    Location
    Hillsdale, Mi.
    Posts
    14

    CYA levels

    Hi everyone,
    I am kinda stumped on this I have been helping my Aunt open her pool for her, she is on this site but has moved into this new house and doesnt have internet. She does have the pool testing kit, not sure which one but it is for really green water.
    This is all she knows about this pool, it was a forclusure home so she knows nothing of the construction of the pool it is inground 16' x 32' she thinks its 9' in the deep end. has a vinyl liner. this puppy was so ucky more dark brown than green, she started shocking it tuesday and said the water is cloudycan see the bottom of shallow end real well and some of the deep end.
    Her #'s are looking better but she cant get a reading for the CYA she does all the mixing and she said it is not cloudy at all very clear?? These are the #'s she had yesterday morning-
    Chlorine 17
    PH 7.5
    TA 140
    CAL 600

    This morning she sent me new #'s-
    Chlorine 1
    PH 7.5
    TA 100
    Cal 270

    Told her to shock it back up to 16 and keep it up. They are just starting to vacuum today as they didnt have the hose and all the stuff needed so i know that will make a huge difference.
    Since the CYA water is clear does that mean there is none?
    Hope i explained it good enough for you all, we really appreciate your help!!
    Mindy
    24' Round, AG, 13,500g Doughboy (Unknown age)
    New Hayward Power-Flo LX 1 hp pump and Sand Filter

  2. Back To Top    #2

    Join Date
    Apr 2009
    Location
    Hillsdale, Mi.
    Posts
    14

    Re: CYA levels

    per pool calculator it holds 34,500 gallons of water
    24' Round, AG, 13,500g Doughboy (Unknown age)
    New Hayward Power-Flo LX 1 hp pump and Sand Filter

  3. Back To Top    #3
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: CYA levels

    yeah, it means the CYA is prob zero.
    One of those CH levels is error?
    Get some CYA in there - enough to reach 30, and resume shocking.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  4. Back To Top    #4

    Join Date
    Apr 2009
    Location
    Hillsdale, Mi.
    Posts
    14

    Re: CYA levels

    Okay thanks!!!
    24' Round, AG, 13,500g Doughboy (Unknown age)
    New Hayward Power-Flo LX 1 hp pump and Sand Filter

  5. Back To Top    #5

    Join Date
    Mar 2009
    Location
    Macon Ga
    Posts
    77

    Re: CYA levels

    I do not believe 34500 gallons is correct for that pool. You need to take the average depth for the whole pool which is I would guess would be around 5 feet and that would give your pool in the 20K gallons range.
    18X38 Grecian 26000 gallon In Ground Vinyl. Goldline AuqaRite SWG with a 1.5 HP Pentair Pump. Triton 2 Sand Filter Two main drains with 4 main returns with 2 more returns on the swimout and two skimmers. Polaris 380

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