Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: How fast will I blast thru the clorine

  1. Back To Top    #1
    rdkll's Avatar
    Join Date
    Jul 2007
    Location
    Huntsville, AL
    Posts
    41

    How fast will I blast thru the clorine

    with zero CYA....its gonna be a few days until I get the stabilizer...
    I bought bleace...but did I get enough??

    Thanks guys........
    1) The size of your pool in gallons = 33,500 16x32x40 L
    2) The type filter you have = 300lb Sand
    3) IG
    4) If it's IG, vinyl liner
    5) pump is 1.5hp

  2. Back To Top    #2
    polyvue's Avatar
    Join Date
    Aug 2009
    Location
    Sacramento, California USA
    Posts
    1,215

    Re: How fast will I blast thru the clorine

    Quote Originally Posted by rdkll
    I bought bleace...but did I get enough??
    You can never have enough bleace.
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
    __
    View of spiral galaxy in Ursa Major NGC6217 - Hubble Telescope 2009

  3. Back To Top    #3

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

    Re: How fast will I blast thru the clorine

    I believe the half-life of FC in noonday sun with CYA 0 is around 35 minutes. That number sticks in my head, anyway, although chem geek does throw around a lot of numbers.

    That's full sun with no cover. Add your bleach in the evening and it should last all night, at least.
    --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
    rdkll's Avatar
    Join Date
    Jul 2007
    Location
    Huntsville, AL
    Posts
    41

    Re: How fast will I blast thru the clorine

    If I get home tonight and there is still clorine......is it safe to assume that there is some cya maybe. I know it held at 4ppm overnight.......does night time matter??
    1) The size of your pool in gallons = 33,500 16x32x40 L
    2) The type filter you have = 300lb Sand
    3) IG
    4) If it's IG, vinyl liner
    5) pump is 1.5hp

  5. Back To Top    #5
    rdkll's Avatar
    Join Date
    Jul 2007
    Location
    Huntsville, AL
    Posts
    41

    Re: How fast will I blast thru the clorine

    I got home at 6p and check the clorine........3.5 fc and .5 cc 4ppm TC. It held that all day........any thoughts?
    1) The size of your pool in gallons = 33,500 16x32x40 L
    2) The type filter you have = 300lb Sand
    3) IG
    4) If it's IG, vinyl liner
    5) pump is 1.5hp

  6. Back To Top    #6

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

    Re: How fast will I blast thru the clorine

    I think your CYA is not zero.
    --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

  7. Back To Top    #7
    rdkll's Avatar
    Join Date
    Jul 2007
    Location
    Huntsville, AL
    Posts
    41

    Re: How fast will I blast thru the clorine

    OK, so is there any way to make the test kit cya test to a finer degree? It held 11ppm over night and will see what it does during the day today....supposed to be overcast and 80's
    1) The size of your pool in gallons = 33,500 16x32x40 L
    2) The type filter you have = 300lb Sand
    3) IG
    4) If it's IG, vinyl liner
    5) pump is 1.5hp

  8. Back To Top    #8
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    9,928

    Re: How fast will I blast thru the clorine

    Quote Originally Posted by rdkll
    OK, so is there any way to make the test kit cya test to a finer degree?
    Is this because you can fill the site tube all the way and still see the dot?

    If so that just means you have less than 30 ppm and you should probably add some right away. Not much point in measuring it if it is that low.
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

  9. Back To Top    #9
    rdkll's Avatar
    Join Date
    Jul 2007
    Location
    Huntsville, AL
    Posts
    41

    Re: How fast will I blast thru the clorine

    I really appreciate the assistance on this.
    How do I add CYA so I dont overshoot............sounds reasonable....when you start to add it how long does it take to register....
    1) The size of your pool in gallons = 33,500 16x32x40 L
    2) The type filter you have = 300lb Sand
    3) IG
    4) If it's IG, vinyl liner
    5) pump is 1.5hp

  10. Back To Top    #10
    polyvue's Avatar
    Join Date
    Aug 2009
    Location
    Sacramento, California USA
    Posts
    1,215

    Re: How fast will I blast thru the clorine

    Quote Originally Posted by rdkll
    How do I add CYA so I dont overshoot............sounds reasonable....when you start to add it how long does it take to register....
    If you have truly excellent circulation and water on the warm side, you can detect the increase in a few hours. But I've heard on this forum that it can take a week to fully register. You could try dividing the amount you want to add in two parts. Add 1 part now, wait 3 or 4 days, then add the 2nd part if needed.
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
    __
    View of spiral galaxy in Ursa Major NGC6217 - Hubble Telescope 2009

Posting Permissions

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