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Thread: Raising CYA

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    Raising CYA

    Hi to all;

    I know I've seen this question before but I was unable to find it on the site:

    Wanting to raise my CYA level about 10 ppm using trichlor pucks. How fast will they raise the CYA level from 20 to 30 ppm?

    Thanks,

    Gary R.
    18 X 32 Oval Inground Gunite Pool 20,000 Gallons Epoxy Painted in 2012
    Tagelus Sand Filter TA 60 D/TA 60-Hayward Super Pumps 1 H.P.
    Ray-Pac Heater 266,000 BTU, KLeen Machine Pool Cleaner
    Solar Cover-Rocky's Pool Cover Reel-Intermatic T104R Timer
    TF-100 Test Kit-PoolSkim Skimmer

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    Vette's Avatar
    Join Date
    Jul 2012
    Location
    Ohio
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    404

    Re: Raising CYA

    That completely depends on how much chlorine you actually need to use to keep your pool up. http://www.poolcalculator.com/ enter your pool's capacity in and go to the bottom calculator and see how much trichlor your need to raise your CYA to 30.
    11,700 gallon 21' round 54" deep all-resin AGP - June 2012
    Waterway 1HP 2-speed pump / 100 sq ft cartridge filter
    Hayward 150,000btu Natural Gas heater
    I use and recommend the TF-100 for testing

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    elwood58's Avatar
    Join Date
    May 2012
    Location
    Sun City West Arizona (2nd Home)
    Posts
    639

    Re: Raising CYA

    Go to poolcalculator.com. Below the calculations table is a section on effects of adding chemicals. Select Trichlor in the drop down box and adjust to dose size. It will tell you based on the pool details you entered in the calculation table.
    19204 Gallon L Shape with a 10X10 2nd Step Baja Ledge. Intellichlor IC-40, IntellipH, Cartridge Filter, Pentair Heater/Chiller (Heat Pump). Tons of Deck with Deck Jets. Construction Complete 6/5/17.

    "If you don't measure it, you can't manage it!"

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    Re: Raising CYA

    Thanks to all!!!!!!!!!!!!!

    Gary R.
    18 X 32 Oval Inground Gunite Pool 20,000 Gallons Epoxy Painted in 2012
    Tagelus Sand Filter TA 60 D/TA 60-Hayward Super Pumps 1 H.P.
    Ray-Pac Heater 266,000 BTU, KLeen Machine Pool Cleaner
    Solar Cover-Rocky's Pool Cover Reel-Intermatic T104R Timer
    TF-100 Test Kit-PoolSkim Skimmer

  5. Back To Top    #5

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Raising CYA

    For every 10 ppm Free Chlorine (FC) added by Trichlor, it also increases Cyanuric Acid (CYA) by 6.1 ppm. So if your daily chlorine usage is around 2 ppm FC per day, then to add 20 ppm CYA it will take 20/0.61/2 = 16 days. The formula is Days = (desired CYA increase) / 0.61 / (FC usage per day)
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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