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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: 48,672
    06-05-2006 01:53 PM Go to last post
  1. Will TSP to lower calcium hardness???

    I've read on a few sites that adding TSP (trisodium phosphate?) will lower the calcium hardness in a swimming pool but I haven't found any clear...

    Started by amanda_easternon‎, 06-06-2006 08:27 PM
    • Replies: 8
    • Views: 11,100
    06-07-2006 06:57 PM Go to last post
  2. how much muriatic acid

    We have a 18x48 frame set intex pool. It holds about 5,580 gallons of water. We just filled it with water May 30. We have been adding muriatic...

    Started by wolfcue‎, 06-07-2006 11:24 AM
    2 Pages
    1 2
    • Replies: 10
    • Views: 22,448
    06-07-2006 05:55 PM Go to last post
  3. Gallons of muriatic, days of aeration...

    Hi All. Great forum. I dismissed my pool service towards the end of April and made the move to bleach. Gotta say my water looks better than it has...

    Started by Sigrid‎, 05-15-2006 03:15 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 8,810
    06-05-2006 09:57 PM Go to last post
  4. Wink Circulate water or not after adding Muriatic Acid?

    I hear/read conflicting directives on how to add Muriatic acid to reduce TA/CA. Some say to turn pump on and recirculate the water and aerate, while...

    Started by kennysacht‎, 06-05-2006 12:33 PM
    • Replies: 5
    • Views: 8,695
    06-05-2006 04:09 PM Go to last post
  5. How much calcium in calcium-based shock?

    When you shock a pool with calcium based shock, how much calcium do you add?

    Started by cleancloths‎, 06-04-2006 03:58 PM
    • Replies: 0
    • Views: 5,257
    06-04-2006 03:58 PM Go to last post
  6. HIGH Calcium

    I have a 10 year old gunite pool, using bleach for past 12 months as a sanitizer and for shock. Ch is approx 550, drain and refill is not am option...

    Started by derrikm‎, 05-18-2006 01:40 AM
    2 Pages
    1 2
    • Replies: 10
    • Views: 8,433
    05-31-2006 11:29 PM Go to last post
  7. Aerating... Question.

    I would like to give this a shot. I can't seem to get my pH up over 7.2 at all and my TA is sitting at 200. I have a 16x32 Vynle Lined Inground Pool...

    Started by Fueller‎, 05-29-2006 10:45 AM
    • Replies: 3
    • Views: 3,916
    05-29-2006 08:04 PM Go to last post
  8. adding baking soda

    When adding baking soda to rise Alkalinity do I just dump it in the deep end and spread around like acid or in the skimmer? Thanks Mike

    Started by mikewaterskis‎, 05-27-2006 08:59 AM
    • Replies: 5
    • Views: 13,368
    05-28-2006 02:06 PM Go to last post
  9. Calcium and pool heater

    I read somewhere on this site that you don't have to worry about calcium with a vinyl lined pool unless you have a heater. I just had my pool hooked...

    Started by seminolewind‎, 05-26-2006 05:08 AM
    • Replies: 5
    • Views: 7,343
    05-27-2006 11:41 PM Go to last post
  10. Question Vinyl Liner Scaling

    My ph and alk WERE too high to begin with but I have them WITHIN range at this point. My question is, how do I remove the scaling that occured...

    Started by Newbie65‎, 05-26-2006 10:29 PM
    • Replies: 0
    • Views: 3,975
    05-26-2006 10:29 PM Go to last post
  11. Unhappy WOW my numbers are off

    Hey today around 2 pm I shocked the pool w/super shock, I am going to bleach but got a deal on super shock, so I go outside at 8pm and check the...

    Started by Bowlin‎, 05-25-2006 08:37 PM
    • Replies: 1
    • Views: 4,107
    05-25-2006 09:19 PM Go to last post
  12. Can I make it through the summer with high CH?

    We have a 12000 gal in ground gunite pool with a SWG. We plan on resurfacing and remodeling the pool later in the year. My fill water stats are:...

    Started by gregk‎, 05-24-2006 11:11 AM
    • Replies: 3
    • Views: 3,515
    05-24-2006 02:34 PM Go to last post
  13. Should I raise CH?

    Just recieved my new kit which includes all the important test, so I was able to do the whole spread: FC= 2.4ppm CC= 0.0ppm TA= 110ppm CYA=...

    Started by BillyBumbler‎, 05-24-2006 02:01 AM
    • Replies: 1
    • Views: 4,291
    05-24-2006 06:52 AM Go to last post
  14. Question Calcium and SWC's

    Hi all, Been keeping my gunite pool on the low side for calcium, as I am afraid to coat my salt water chlorinator plates with a bunch of calcium, ...

    Started by jacthiele‎, 05-22-2006 11:48 PM
    • Replies: 4
    • Views: 4,281
    05-24-2006 12:53 AM Go to last post
  15. Calcium Chloride Link to Cloudy Water??

    I'm wondering :rolleyes: if anyone has experienced hazy/cloudy pool water after adding Calcium Chloride to increase Calcium Hardness. It seems...

    Started by Sprint54‎, 05-23-2006 12:55 PM
    • Replies: 4
    • Views: 8,016
    05-23-2006 04:48 PM Go to last post
  16. Calcium Deposits?

    I let the water balance slide during the winter and white deposits formed throughout the pool and spa. They're quite hard and I suspect they're...

    Started by GJBenn85‎, 05-13-2006 04:21 PM
    • Replies: 6
    • Views: 6,789
    05-22-2006 08:21 PM Go to last post
  17. raising alk?

    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...

    Started by dhale63‎, 05-16-2006 04:03 PM
    • Replies: 1
    • Views: 5,932
    05-16-2006 04:57 PM Go to last post
  18. 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...

    Started by dhale63‎, 05-11-2006 12:29 PM
    • Replies: 4
    • Views: 5,448
    05-16-2006 10:21 AM Go to last post
  19. Calcium/Scale build up on opening

    My pool was opened today. I can't believe the condition. It is green, and the plaster is covered with calcium that is thick and covering every part...

    Started by DM‎, 05-11-2006 05:17 PM
    • Replies: 0
    • Views: 5,636
    05-11-2006 05:17 PM Go to last post
  20. do I need to raise the Total Alkalinity

    some basic background info: about 1 1/2 weeks ago we just had the plaster redone. The pool is about 20-23K gallons as best as I can figure. I...

    Started by sgtb1‎, 05-08-2006 07:09 PM
    • Replies: 2
    • Views: 6,495
    05-09-2006 10:02 PM Go to last post
  21. Calcium level

    Hi all The Calcium level in my 10,000 gal. A.G. vinyl pool measured at 30 this am. Is this OK? I looked at last year's records, and it ran around...

    Started by Top Cat‎, 05-08-2006 01:37 PM
    • Replies: 1
    • Views: 3,692
    05-08-2006 05:08 PM Go to last post
  22. Is my TA too high?

    After running my first test of the season everything looked like something i could deal with, no problem. Then I started reading and it seems my TA...

    Started by poolboyforjenny‎, 05-06-2006 11:06 PM
    • Replies: 3
    • Views: 4,544
    05-07-2006 10:13 PM Go to last post
  23. Alkalinity?

    I know that lowering the alk is a slow process. We uncovered the pool a little over a week ago 4/23. Was a little green so added bleach until I...

    Started by savdoc2‎, 04-30-2006 11:12 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 39
    • Views: 13,200
    05-06-2006 08:53 AM Go to last post
  24. How often to test

    Have added muratic acid to lower TA, when do I retest?

    Started by sspine‎, 05-04-2006 07:40 PM
    • Replies: 4
    • Views: 4,375
    05-05-2006 10:13 AM Go to last post
  25. Water is too hard

    I have a gunite pool, this will be my third operating season. The first two years were basically trouble free, except for my ever raising pH. Oh,...

    Started by mphare‎, 04-30-2006 11:38 PM
    • Replies: 2
    • Views: 6,045
    05-01-2006 03:25 PM Go to last post
  26. Calcium with Ben's test

    Ok, everything looks to be in check except for my calcium level. I did the level and it wouldn't turn blue....it stayed clear. There was maybe a...

    Started by mizzouguy‎, 04-26-2006 10:22 PM
    • Replies: 2
    • Views: 3,779
    04-30-2006 11:54 PM Go to last post
  27. Unhappy Help w/ Numbers

    Ok here are my numbers, I have a vinyl 22,000 gal pool. Chl 2 pH 7.8 T.A 210ppm T.H 740ppm CYA 80ppm Last weeks tests Chl 6 pH 7.5

    Started by dustybecca‎, 04-27-2006 12:38 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 6,031
    04-28-2006 11:44 PM Go to last post
  28. Question Low calcium levels, plasticizers in vinyl liners, leaching cobalt from fibergalss?

    I was speaking with someone at the local Ace Hardware pool department today who was very inpressed with my knowledge of pool chemsitry and...

    Started by waterbear‎, 04-08-2006 07:59 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 15,767
    04-21-2006 08:07 PM Go to last post
  29. Best way to lower calcium?

    I'm noticing a white haze around my edge tiles and a little scaling on the tile around my spa spillover. What's the best way to lower the calcium...

    Started by dalparadise‎, 04-15-2006 07:04 AM
    • Replies: 8
    • Views: 6,271
    04-16-2006 11:21 AM Go to last post
  30. Alkalinity FAQ

    I thought I'd repost the Alkalinity FAQ that PoolDoc had posted in this area of the old Forum, since I happen to have it saved: #1109, "Alkalinity...

    Started by VickieC24‎, 03-26-2006 06:47 AM
    • Replies: 4
    • Views: 9,088
    04-04-2006 10:03 PM Go to last post

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