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Forum: Dealing with Alkalinity and Calcium

High alkalinity and calcium levels are much trickier to resolve than the pool books indicate

  1. Exclamation Sticky Thread Sticky: FAQs & HOWTOs: Swimming Pool Alkalinity

    HOWTO: Step-by-Step Guide to lowering your alkalinity The HOW-TO has moved here: lowering-swimming-pool-alkalinity-step-by-step.html You should...

    Started by PoolDoc‎, 03-29-2006 10:50 AM
    • Replies: 2
    • Views: 58,228
    06-05-2006 01:53 PM Go to last post
  1. Thanks!! Northern California

    Greetings from Sacramento . I had a calcium build up and it was from me taking care of my own pool for the last 4 years. It was only a matter of...

    Started by iErickS‎, 05-14-2014 01:06 PM
    • Replies: 2
    • Views: 8,271
    05-20-2014 02:24 PM Go to last post
  2. sides of pool feel like sandpaper

    Vinyl liner pool. 17,000 gal. Salt water. Intel Chlor. Last weekend pool was almost clear. Took sample in and was told to add a few things...

    Started by mkimberlycarter‎, 05-07-2014 07:07 PM
    • Replies: 1
    • Views: 13,826
    05-12-2014 03:41 PM Go to last post
  3. Can't stabilize spa pH and alkalinity

    I have a spa that uses 1" bromine tabs. Every week, the pH is up and the TA is down. My goals are a pH of 7.4, TA of 140 and calcium of 200 plus. Any...

    Started by RobLane‎, 12-28-2013 04:01 PM
    • Replies: 5
    • Views: 10,600
    02-01-2014 10:08 PM Go to last post
  4. Remove limestone on the sides of the fiber pool

    (Admin note: Poster is in Denmark & doesn't have access to US methods and chems!) Hey everyone. can you help me, I got a lot of limestone on...

    Started by FIFFI‎, 12-23-2013 04:29 AM
    • Replies: 5
    • Views: 6,370
    01-04-2014 09:42 AM Go to last post
  5. Water Softener for hard fill water

    Our tap water is hard (300+). I'm in southern california where it's hot and never rains. I never drain water I only add more and more Ch with...

    Started by Rickster‎, 12-21-2013 03:33 AM
    • Replies: 3
    • Views: 6,219
    12-23-2013 11:05 PM Go to last post
  6. Softening pool water

    I live i Sothern, CA where all we do is add water to the pool. Tap water is 300ppm CH, so the level just builds up and up. I'm about 1100 now and...

    Started by Rickster‎, 12-10-2013 05:37 AM
    • Replies: 4
    • Views: 6,002
    12-12-2013 06:28 PM Go to last post
  7. New Pool Balance

    Hi I have a new pool, it was finished 5th October and contain about 10,000 gallon of water. The pool is plastered with florida gem, and is going to...

    Started by parkinc‎, 10-21-2013 07:59 AM
    • Replies: 6
    • Views: 7,911
    10-23-2013 05:10 PM Go to last post
  8. CYA off chart...high?

    Pool Stats: (1997) 21.3k IG, Sta-Rite Sys 3 600sq ft Filter, AO Smith 2.2hp single speed motor, in-floor clean jets. Test results: 12 FC, 2 CC,...

    Started by reacherAZ‎, 08-22-2013 06:15 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 10,827
    09-04-2013 04:02 PM Go to last post
  9. Strange test results -- very high combined chlorine (CC)

    Ok, i'm a new pool owner (not a new pool). Bought a house with a 14x28 IG pool with vinyl liner, sand filter, heater, and auto-cover. Thpool...

    Started by Themadczar‎, 05-30-2013 11:08 AM
    6 Pages
    1 2 3 ... 6
    attaboy, dissappearing cya
    • Replies: 56
    • Views: 140,892
    08-05-2013 10:27 PM Go to last post
  10. TA low, pH high and FC low

    I got my water tested at a different pool supply place than normal (I won't mention the national chain), I didn't have time to drive the 40 minutes...

    Started by southjerseypool‎, 07-31-2013 04:23 PM
    • Replies: 3
    • Views: 5,523
    08-02-2013 01:36 PM Go to last post
  11. Muriatic acid and lowering TA

    I'm following the guide to lower total alkalinity and was just curious, how long should I wait after adding acid before testing ph? Thank you, ...

    Started by Neetlejuice‎, 07-12-2013 07:57 PM
    • Replies: 7
    • Views: 6,481
    07-26-2013 01:30 PM Go to last post
  12. Post hard water

    lots of calcium in pool water - hardness reads over a 1000. i am bringing the TA and alkalinity down following your protocol and it seems to be...

    Started by cbaray‎, 07-24-2013 07:20 PM
    • Replies: 1
    • Views: 4,949
    07-25-2013 05:22 PM Go to last post
  13. How to lower Alkalinity without acid

    I have a round 24' pool 52 inches high, with a hayward gas pool heater,hayward sand filter. I use a lamotte pro 9 test kit. I had some mustard algae...

    Started by bearsprague‎, 07-14-2013 08:41 PM
    • Replies: 3
    • Views: 7,787
    07-25-2013 07:32 AM Go to last post
  14. what is the ideal range for alkalinity?

    I just finished filling my 16x48 Intex pool and checked the pH and alkalinity. The pH was at 8.2 yesterday but I lowered it down to about 7.5 using...

    Started by ernesto099‎, 07-24-2013 05:55 PM
    • Replies: 2
    • Views: 6,162
    07-24-2013 06:46 PM Go to last post
  15. pool chemistry

    i'm new here, hope i'm doing this right......I have questions about pool chemistry what they should be and what to do if they are out of range. ...

    Started by i'm sinking‎, 07-11-2013 12:29 PM
    • Replies: 5
    • Views: 8,197
    07-24-2013 03:12 PM Go to last post
  16. Calcium???

    Hey all, Can someone please! explain to me why one would still need calcium in a liner pool with either a heater or SWCG?:confused: As long as...

    Started by waste‎, 04-27-2007 03:08 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 20,277
    07-24-2013 11:19 AM Go to last post
  17. High calcium, high alkalinity, old plaster

    I have a nine year old, 30,000, in ground, gunite pool with SWG. My calcium and alkalinity have been climbing slowly for years. Last year it was...

    Started by cscannon‎, 07-24-2013 12:00 AM
    alkalinity, calcium, plaster
    • Replies: 0
    • Views: 8,133
    07-24-2013 12:00 AM Go to last post
  18. Alkalinity and PH issues

    I just set up my first pool this year, a 25k gal above ground. Filled with my well water. After filling and filtering out a lot of iron with the DE...

    Started by Krizoid‎, 07-11-2013 12:48 PM
    • Replies: 4
    • Views: 8,688
    07-22-2013 11:23 PM Go to last post
  19. Light green water-no combined chlorine

    Could alkalinity, calcium cause water to be cloudy light green. There is no combined chlorine. I use the taylor 2000 kit. I kept pool filter pump on...

    Started by fhorta‎, 07-20-2013 11:17 AM
    • Replies: 0
    • Views: 5,660
    07-20-2013 11:17 AM Go to last post
  20. Cloudy salt water pool after adding baking soda

    When asking for help with a pool you normally care for all by yourself you can't be too careful. I asked my daughter to dissolve stabilizer and...

    Started by justinsmom719‎, 07-17-2013 04:38 PM
    2 Pages
    1 2
    • Replies: 10
    • Views: 19,746
    07-20-2013 08:03 AM Go to last post
  21. I think I have calcium on the bottom of my liner.

    I have calcium on the bottom of my liner

    Started by DJNerat‎, 07-17-2013 07:14 PM
    • Replies: 6
    • Views: 6,438
    07-18-2013 08:09 AM Go to last post
  22. Post Cloudy water after shock?

    Hi - I am a first year pool owner - having bought a house with a 10-15 year old inground Chlorine pool. I'm figuring things out but I have a...

    Started by Salvino‎, 07-08-2013 09:10 PM
    • Replies: 4
    • Views: 9,144
    07-13-2013 02:56 AM Go to last post
  23. Adjusting TA down by 40 ppm when CYA > 100ppm; is this really necesary?

    Each time I've gotten my water tested at our local pool store, they tell me to adjust TA down by 40 points, since my CYA measures 100 ppm. Is this...

    Started by mmann3200‎, 07-09-2013 06:51 PM
    • Replies: 3
    • Views: 7,490
    07-11-2013 03:12 PM Go to last post
  24. Raising TA while maintaining salinity

    My first question here, but I have not found any information anywhere that has been helpful. I have an ingound plaster pool that is now 1-3/4 years...

    Started by carp6318‎, 06-25-2013 12:05 PM
    • Replies: 4
    • Views: 7,958
    07-11-2013 03:00 PM Go to last post
  25. Lowering TA (alkalinity) by aerating a connected hot tub

    The water in our hot tub circulates with the main pool via spill over. It also contains 1 of the 5 total returns (4 in the pool). The question is,...

    Started by mmann3200‎, 07-09-2013 07:31 PM
    • Replies: 3
    • Views: 8,359
    07-10-2013 07:21 PM Go to last post
  26. Hardness increaser less expensive than the pool store?

    I have to continually increase my water hardness. The hardness increaser I am buying is running $33 for 15 pounds. Is there a less expensive...

    Started by tfrailey‎, 06-27-2013 06:33 PM
    • Replies: 9
    • Views: 8,428
    07-03-2013 02:07 PM Go to last post
  27. Please help. Hardness issue with brand new plaster

    We just got our 16 yr old pool replastered for the first time a few days ago. Leslies pool tested my new (chemical free) water and told me that I...

    Started by Lori O‎, 07-02-2013 02:02 AM
    • Replies: 6
    • Views: 6,667
    07-02-2013 06:13 PM Go to last post
  28. Is baking soda an acceptable substitute for Alkalinity Increaser?

    I was told I need to put 13lbs of alkalinity in my pool, I heard I could use baking soda, is that true? If so, how much will I need? Thanks for your...

    Started by Gary carpenter‎, 07-01-2013 05:06 PM
    • Replies: 1
    • Views: 10,378
    07-01-2013 07:02 PM Go to last post
  29. Low TC, high TA, High pH in hot tub-how to fix?

    We just tested our water and the TC is very low, while TA and pH are really high...how can it be so alkaline AND have such high pH (over 8.5)...

    Started by Maggie‎, 06-29-2013 09:02 PM
    • Replies: 6
    • Views: 10,186
    07-01-2013 08:13 AM Go to last post
  30. Best source of Calcium?

    My CH is testing around 40- 50ppm. What is the best source to buy Calcium Chloride? Looks like I need about 60lbs to get is up to the mid 200's. I am...

    Started by lstinthot‎, 05-30-2013 08:15 AM
    • Replies: 6
    • Views: 9,037
    06-22-2013 02:26 PM Go to last post

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