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Thread: Should I care if my CYA is "only" 50 if my Salt Generator at 10% gets me FC of 10+?

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    Join Date
    Jul 2016
    Location
    DFW/TX
    Posts
    10

    Should I care if my CYA is "only" 50 if my Salt Generator at 10% gets me FC of 10+?

    Does CYA have a purpose other than to slow down loss of FC?
    Because I have more FC than I know what to do with.
    At 11-13% my SWG overproduces FC past 8 to 10 to 12, and at 10% it holds pretty steady.
    I am trying to keep all indicators in their suggested ranges, should I care if my CYA is low?
    If I must get CYA up to 70-80, why? Will it hurt to let CYA linger at 50?
    Trying to understand the complete usage of CYA.
    Thanks in advance
    SWG - 15,000 Gal - IG pool/spa - plaster/pebble
    Pentair CCP520 DE Filter + Pentair Intelliflow Variable Speed Pump
    Pentair IntelliChlor IC40 SWG - Built 2012

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    Mod Squad Jimrahbe's Avatar
    Join Date
    Jul 2014
    Location
    Bedford, TX
    Posts
    9,310

    Re: Should I care if my CYA is "only" 50 if my Salt Generator at 10% gets me FC of 10

    R,

    You can let you CYA be anything you want, as long as you are monitoring it so that the FC does burn off too quickly and drop below the minimum number.

    My guess, however is that your CYA is actually more than you think it is. I swear I can see that dot through a 2" lead shied...

    Thanks for posting,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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