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Thread: Cya level SWG

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    Join Date
    Apr 2017
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    NJ
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    Cya level SWG

    I'm a little confused. TFP recommends a CYA level of 70-80 with a swg. I've got a 16k gunite pool with a Jandy Aquapure 1400, which is oversized but came with the pool. I'm running it at 15% 9 hours a day right now in NJ and my chlorine is 4.8. My CYA is 55.
    So my question is, why should I increase my CYA levels when my chlorine stays high with only 15% cell on time?
    Fcl 4.81
    Tcl 4.83
    pH 7.8
    Alk 50
    Cya 55
    Ch 275
    Borate 52
    Temp 65
    Salt 3300
    Thanks for any insight

  2. Back To Top    #2
    Mod Squad Texas Splash's Avatar
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    Re: Cya level SWG

    Besides preserving the FC generated by your SWG, the next big advantage is to lessen the use of the SWG and/or pump time on your system. For example, you're running at 9 hrs now, but what if you could maintain that same FC level by running the system only 4 hrs? Not only would your SWG service life be extended, but you should save a few $$ from energy pump run-times. It's really a matter of adjusting those parameters to meet your pool's FC demand while extending SWG cell life and saving some money. You'll see a bit more of that discussed at the links below. Hope that helps.
    Pool School - Salt Water Chlorine Generators
    Pool School - Water Balance for SWGs
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Mod Squad jblizzle's Avatar
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    Re: Cya level SWG

    In New Jersey you might be fine with the slightly lower cya level. A higher cya level would allow the swg to work even less and should last longer.
    .
    How are you testing your water that you have such interesting numbers?
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  4. Back To Top    #4

    Join Date
    Apr 2017
    Location
    NJ
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    Re: Cya level SWG

    Thanks for the help. The water was tested with water link spin lab

  5. Back To Top    #5
    Mod Squad jblizzle's Avatar
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    Re: Cya level SWG

    We generally do not trust those digital testers. Beware.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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