scale

  1. A

    Help with scale?

    My pool is 4 years old, 18k gal, salt, gunite in KY. I am (hopefully) learning to manage it. There are a number of small white mineral (I presume calcium) deposits. These are mostly around 1/8 to 1/4 inch; some are thin (maybe 1/16 inch) and longer up to 2 inches. Some of these are in small...
  2. A

    Jacks magic #2 needed…will it work?

    We have a pool built and opened may 2023. Before plaster, an old irrigation line dripped through the concrete and subsequently the plaster which caused white streaks and marks in the blue plaster. Our PB told us to acid wash which we did this spring and everything looked okay (although the...
  3. Gary Davis

    Does dissolving calcium scale on the tile with diluted acid damage the tile itself & does it contribute to lowering alkalinity (or adding calcium)?

    I'm just curious about three related questions given I need to add massive amounts of acid to my fill water to lower the high alkalinity to a more manageable range. Does dissolving calcium scale on the tile with diluted acid damage the tile or grout itself? Does using the calculated amount of...
  4. N

    High Calcium Levels - How to drain safely

    Hi all, I have a few things going on, hoping you can help make sure I’m on the right path. Bought a TF-100 kit and did these tests today: Alk: 60ppm (will raise tonight with sodium bicarbonate) CYA: 40ppm PH: 7.8 Chlorine: was high but I shocked yesterday CH: 525 Last year I had my pool...
  5. DavidArmenB

    Scale Developing on Waterline Tile within 1/2 Year Despite Negative CSI

    I did a complete rebuild of my pool in June. Removed the old plaster, all the tile, and the coping, and replaced it with Mini Pebble, Glass Tile, and Stamped Concrete Coping. So it is only seven months old. I tested my fill water before filling: All tests done with Taylor K-2006 June 12, 2023 -...
  6. N

    How to fix Pool Scale due to calcium

    I had my pool replastered this winter and I screwed up the startup. Long story short, I added way too much calcium at pool start up and didn't realize the effects it would cause. After about 2 months I noticed the scale appearing but didn't fully realize what it was. It's now been another 2...
  7. L

    Beautech Made pool Cloudy

    Hello all. Added a bottle of Beautech to a pool in Indiana on 6/9/23. Water started to turn cloudy on Tuesday 6/13/23 and by Thursday 6/15 it was all the way cloudy, cant see bottom step. fiberglass pool cartridge filter I cleaned the filter on Tuesday, normal amount of debris came out. I...
  8. S

    Calcium/Scale?

    30k gallon salt water pool, new vinyl liner installed 1 month ago. FC 4.5 CC 0 PH 7.6 TA 200 CH 325 CYA 35 Running my SWG at 50%, backwashed last night, Pool heater at 80 degrees. I’m having trouble with scale or calcium or maybe that’s the same thing, it is white, fine, gritty and cloudy when...
  9. P

    What is this? Scale? Nodules? And what do I do to correct?

    I’ve had a pool blanket on for a few weeks due to a solar panel that had large leak…. So I did not notice this stuff forming….. last year there were a few ….. now there are a few large communities. What is this stuff and what should I do to properly address it? Except for a tiny spot here snd...
  10. K

    Recommended Calcium Hardness (CH) with Heater

    Newish pool owner here, recently went through my first SLAM (clorine dropped due to SWG issue and I didn't catch it). I had been a bit lax in testing and things got away from me. I'm now being more diligent about testing, possibly bordering on OCD behavior. (I live in North Texas and up until...
  11. Boilerth98

    Do I need scale preventative?

    Just wonder if anyone can provide some guidance on scale preventative. Do I need it? I clean my salt cell precisely per manufacturer's instructions. The scale comes off easily and it's not what I would call excessive. My local pool store (BioGuard products) is constantly telling me to use 2+...
  12. T

    Unkept Pool

    This is my pool. I’m working on cleaning it. I am having to use a wire brush and wide “putty” knife to scrape the stuff off the side. That still isn’t getting everything.I’ve been told to drain it as far as possible so that I can get everything scraped off side and out of the bottoms. Please any...
  13. M

    Pool

    Thank you in advance.
  14. D

    Melting Waterline Scale away... using Bar Keepers Friend as a paste.

    After several failed attempts to clean my waterline with a pumice stone as well as acid, I found a succesful method using Bar Keepers Friend. This requires lowering your waterline a few inches. I used Bar Keepers Friend and water to make small batches of paste. I slathered the paste on about...
  15. G

    Flakes/Scale Buildup in Heat Exchanger

    Hello, I continue to struggle with flakes/scale buildup in my heat exchanger (I posted in 2018 on this). Last spring I had to ream scale out of my heat exchanger in order to restore flow. I also set up controls so the heater starts a half hour after the pump is running and shuts off a half...
  16. R

    Scale on spillway

    I've had my pool running about about 6ish months now and, I'm trying to figure out how I got this calcium buildup on my spillway. It was ALL over this wall and took my wife and I something like four hours with (very gently) a screwdriver and muriatic acid to break all of this off. It seems...
  17. P

    Thoroughly Confused...

    I have been maintaining my AZ pool with liquid chlorine for the last 5 years and had clear water for the most part. However, I have been constantly fighting a high pH and am now seeing quite a bit of scale buildup so had my water tested at the local store to see what TDS levels were to evaluate...
  18. F

    Suggestions for using Jack's Magic Copper and Scale

    Recently bought a house and it came with a pool. It wasnt kept up for a month or two, and it started to go green. So I shocked it and put in algaecide (maybe did this twice, and used 6-1 chlorinating tabs in between), and it seemed like the last time I did it the next day or two a really bad...
  19. Z

    New pool, a couple questions

    Pool was plastered over a week ago with Diamondbrite. I have been doing the regular scrubs and checking the chemistry daily. There is a blob of plaster in the shallow end near the built in stairs and another small line of white plaster that juts out in another section. I don't know if its...
  20. S

    Filter "exploited"

    Don't even know where to start here. Well, see the pictures. Some background story: - Both the filter encasing and the cartridge not more than 3 months of usage. - Pool recently resurfaced (November 2018) - Big areas of decoloration after the 30-day curing process (proper chemistry kept and...