+ Reply to Thread
Results 1 to 5 of 5

Thread: Should I lower my alkalinity?

  1. #1
    Join Date
    Dec 2005
    Location
    Weskan, Kansas
    Posts
    23

    Default Should I lower my alkalinity?

    From reading here I know that lowering alk can be a real pain. Is it necessary in my situation? I have an AG 30' X 52" pool w/vinyl liner that was filled for the first time two weeks ago. I think my volume is around 17000 gal. Please correct me if that sounds way off. My numbers are as follows:

    FC 5.5
    CC 0
    TC 5.5
    PH 7.6
    ALK 240
    CAL 130
    CYA 35

    It seems to me that most of my numbers are pretty good except that the cal and alk are pretty high.

    Any advice would be greatly appreciated!
    Thanks,
    Dave

  2. #2
    PatL34 is offline Lifetime Member Widget Weaver PatL34 2 stars PatL34 2 stars
    Join Date
    Dec 1969
    Location
    Saint Cloud, FL
    Age
    86
    Posts
    331

    Default Re: Should I lower my alkalinity?

    Yes, your alkalinity is high, and you can follow the procedures from the "Sticky" thread at the beginning of this forum. Your CH is not that high for a vinyl pool.

    Hope this helps.

    Pat
    20,000 Gallon IG Diamond Brite pool, 1.5 HP Sta-Rite pump, Hayward Microclear DE3600 filter, Favco solar panels, Poolpilot DIG-220 with SC-48 cell.

    + SWCG OPERATION thread here: http://www.poolforum.com/pf2/showthread.php?t=1226
    + SWCG Running Costs post here: http://www.poolforum.com/pf2/showthread.php?t=316
    + Effective Stabilizer addition post here: http://www.poolforum.com/pf2/showthread.php?p=6645

  3. #3
    CarlD's Avatar
    CarlD is offline SuperMod Emeritus Vortex Adjuster CarlD 4 stars CarlD 4 stars CarlD 4 stars CarlD 4 stars CarlD 4 stars CarlD 4 stars
    Join Date
    Dec 1969
    Location
    North Central NJ
    Posts
    6,607

    Default Re: Should I lower my alkalinity?

    I would lower T/A when it's that high, even in vinyl. Target 80-125, but in vinyl, anything below 180 is just fine. So if you hit say, 140, you can stop and enjoy your pool.
    Carl

  4. #4
    duraleigh Guest

    Default Re: Should I lower my alkalinity?

    21,000 gallons in your pool. assuming 4' depth of the water.

  5. #5
    Join Date
    Dec 2005
    Location
    Weskan, Kansas
    Posts
    23

    Default Re: Should I lower my alkalinity?

    Thanks for all your help. What are the consequences of leaving my alk at 240. As I understand it, it will help my pH stay steady but there must be other issues. I'm new to this pool stuff but this site is a great way to learn and all of you are great help and I appreciate all your input.
    Thanks,
    Dave

    PS my numbers as of today
    fc 3.5
    cc 0
    tc 3.5
    alk 240
    cal 170
    cya 30
    ph 7.5
    temp 64
    water only slightly cloudy but I can easily see the bottom and pattern on the liner of my 30' round AG

+ Reply to Thread

Similar Threads

  1. Alkalinity stuck at 0...after 50 lbs. Alkalinity Increaser
    By heyaim in forum Dealing with Alkalinity and Calcium
    Replies: 3
    Last Post: 07-22-2012, 06:51 PM
  2. Help with trying to understand how to get Alkalinity lower
    By Rosie700 in forum Salt Generators (SWCG) & other Chlorine Feeders
    Replies: 4
    Last Post: 06-24-2012, 10:48 PM
  3. how to lower if I need to? alkalinity of 170
    By timmie in forum Testing and Adjusting Pool Water Chemistry
    Replies: 12
    Last Post: 07-08-2006, 10:28 PM
  4. Pool store advice to lower alkalinity - three day muriatic acid dose method
    By aquarium in forum Dealing with Alkalinity and Calcium
    Replies: 14
    Last Post: 07-03-2006, 10:04 PM
  5. How Do You Lower CYA?
    By cheshamjim in forum Testing and Adjusting Pool Water Chemistry
    Replies: 19
    Last Post: 06-17-2006, 12:53 PM

Bookmarks

Posting Permissions

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