Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: how long for cya

  1. Back To Top    #1

    Join Date
    May 2009
    Location
    Trenton NJ
    Posts
    497

    how long for cya

    I put enough cya in a sock 3 days ago to get me in the 70-80 range (swg) and I am still getting a reading about 30 or so. Should the reading be going up gradually, I started at 30ppm.

    I read here it takes a week to get a good reading, do I need to be more patient? When do you get to a point when you just add more?

    I did backwash a few times, but nothing drastic. I am shocking at a cya of 30ppm. Today my fc is 4.5, it was 10ppm on monday, I am going to add about 3 gallons tonight. Oh my cc is .5
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

  2. Back To Top    #2

    Join Date
    Mar 2009
    Location
    Huntsville, AL
    Posts
    156

    Re: how long for cya

    CYA seems to take about a week to register on the test.

    Once I add it, I assume it is active and immediately adjust my FC target (i.e. FC minimum) up per the Chlorine/CYA chart at the following link:
    http://www.troublefreepool.com/pool-...ya_chart_shock
    27K gal, IG vinyl, 1.5 HP pump, 24" sand filter, Goldline Aqua Plus SWG

  3. Back To Top    #3

    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: how long for cya

    ethany, is the sock in front of a return or in the skimmer basket? If it's in front of a return, be patient; if it's in the skimmer basket, you might have lost some in the backwash.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

  4. Back To Top    #4

    Join Date
    May 2009
    Location
    Trenton NJ
    Posts
    497

    Re: how long for cya

    Its in front of return. Monday will be a week.
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

  5. Back To Top    #5
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: how long for cya

    Did it all dissolve from the sock? What was the % active ingredient of CYA?
    (I once bought some that was only 50% and didn't realize it till I tested and did not reach my target...then I read the ingredient content. LOL)
    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

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •