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

Thread: no chlorine and low ph

  1. Back To Top    #1
    bmann71's Avatar
    Join Date
    Aug 2007
    Location
    Washington, Indiana
    Posts
    55

    no chlorine and low ph

    New pool owner and it's kicking my butt. I haven't been able to hold chlorine for the past month. Right now my readings are...
    fc 0
    ph 6.8
    alk 180
    cya 0-10

    My readings come from a 4-in-1 guardex kit. Any suggestions on a better kit?

    Obviously I'm way out of wack . The more I read the more I'm confused. Some of the things I've read/heard say get ph and alk in balance before you do anything some say add chlorine. I afraid to add up how much I've spent on name brand chlorine in the past month with no success.

    I added 10 (96oz) jugs of 6% chlorine bleach last night and after 2 hours I still had zero chlorine.

    I'm at a loss...
    any help would be greatly appreciated.
    Ponduke
    20,000 gal/ Fiberglass IG/ Sta-rite s7m120 cartridge filter/Sta-rite SR400NA 400,000 btu heater/Polaris 360 Cleaner/K-2006 Test Kit
    poolcalculator
    Pool School

  2. Back To Top    #2
    Guest
    YOu need 30-50 ppm CYA before your chlorine will hold, right now it will only take about 30 minutes of sunlight and it's gone....get some CYA in there!

    Start aerating the water to get the pH up....When it hits about 7.6 add more acid to bring it back down to 7.0, test the TA and aerate. repeat this unti the TA is where you want it when you test it at pH of 7.0 and then just aerate to bring it back up to 7.6

  3. Back To Top    #3

    Join Date
    Apr 2007
    Location
    Arizona
    Posts
    924
    Are you sure you are getting a 0 reading of chlorine? I'm surprised at that, if you added it at night. Could it be that you have so much chlorine that it is bleaching out the test?

    I'd get another test kit or have it checked at a pool store.
    Buggs

    14,000 gallon, in ground, plaster, free form, play pool.
    Sta-Rite Max-E-Glass with a 1.5 hp Emerson motor
    WaterCo Micron High Rate sand filter S750 490 lb, 4883 sq ft - using ZeoBest
    In floor Polaris cleaning system
    Blue Diamond robot for those after storm days when I can't wait overnight for the in floor to clean it.

  4. Back To Top    #4
    bmann71's Avatar
    Join Date
    Aug 2007
    Location
    Washington, Indiana
    Posts
    55
    Thanks for the info. At this point I'm not sure about anything.

    You say aerate to bring up the ph. Pump has been running 24/7 and I've checked it several times in the last couple days and it is holding at 6.8

    Thanks for the advice.
    Ponduke
    20,000 gal/ Fiberglass IG/ Sta-rite s7m120 cartridge filter/Sta-rite SR400NA 400,000 btu heater/Polaris 360 Cleaner/K-2006 Test Kit
    poolcalculator
    Pool School

  5. Back To Top    #5
    Do you have any waterfalls/water features/spa jets that could be turned on? Aim your returns, if you can, to the surface. Get a bunch of people splashing in there.
    Check out the third post of this thread for a great aerator made from pvc and screwed into a return!

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

  6. Back To Top    #6

    Join Date
    Jun 2007
    Location
    Illinois
    Posts
    3

    no chlorine and low ph

    I am somewhat of a newbie also, but your CYA is too low and the sun is pretty much "eating up" your chlorine. Your levels, if I"m am correct need to be between 30-50. You can do this by adding stabilizer to your pool. This is a great site, and I have learned alot from it. Good luck with your pool!
    20x40 IG plaster w/spa, Polaris Autoclear SWG

  7. Back To Top    #7
    MikeInTN's Avatar
    Join Date
    May 2007
    Location
    Middle Tennessee
    Posts
    1,335
    BTW, to answer your question about a better test kit - the two that seem to be the favorites of the posters here are the Taylor K-2006 and the TF100 kit. The Taylor kit can be bought online either directly from Taylor or from here and the TF100 from here . The TF100 kit is assembled and sold by one of the members here on the forum, and as such, he can provide answers to any questions you have about the kit, and testing with the kit.

    edit: Actually, the K-2006 can be bought from more online pool supply stores than just the supplier provided in the link; this business has the best price I've found on one though, which is why I listed it.
    24' x 52" AGP - approx 13,500 gallons
    Pentair Optiflo 1 hp/2sp pump w/ Swimpro Voyager 150 sq ft cartridge filter
    Intex 8110 SWCG
    "Fear the Schnauz!"

  8. Back To Top    #8
    bmann71's Avatar
    Join Date
    Aug 2007
    Location
    Washington, Indiana
    Posts
    55
    I do have 4 spa jets that I can point up to the suface.

    Waterbear, I brought my ph up and you said add more acid to bring it down. Are you referring to cya or muriatic? Bringin down ph also lowers alk?

    Thanks all
    Ponduke
    20,000 gal/ Fiberglass IG/ Sta-rite s7m120 cartridge filter/Sta-rite SR400NA 400,000 btu heater/Polaris 360 Cleaner/K-2006 Test Kit
    poolcalculator
    Pool School

  9. Back To Top    #9
    Muriatic Acid is what you want to be using. When you add the MA, it brings down both the TA and pH. (you want your pH around 7.0-7.2) Then you aerate to raise the pH without raising the TA. When the pH goes up, you add more MA to drop the pH & TA...

    Repeat this process until your TA is where you want it, then adjust your pH

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

  10. Back To Top    #10
    bmann71's Avatar
    Join Date
    Aug 2007
    Location
    Washington, Indiana
    Posts
    55
    Thanks Mermaid Queen!
    Ponduke
    20,000 gal/ Fiberglass IG/ Sta-rite s7m120 cartridge filter/Sta-rite SR400NA 400,000 btu heater/Polaris 360 Cleaner/K-2006 Test Kit
    poolcalculator
    Pool School

Posting Permissions

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