calcium buildup

  1. V

    Hot Start - 4 Year Old Pool

    Hello, i am new to TFP. 4 year old pool owner in south TX. I have few patches of calcium deposit on my pebble tec floor and walls. I reached out to a pool service company and inquired about their services and they want to do a hot start to remove the deposits. Is it safe to do a hot start for a...
  2. O

    Inexperienced new pool owner - please help!

    Greetings! I am in need of help, I have been reading over several different posts and still find myself very unsure of what I should do. I have a 12K gallon pebble-tec pool with no trees but lots of sun, looking for advice on what will not break the bank and is long lasting..... (I am looking...
  3. JB007

    Hard calcium built up in grout tile and grout seeping water

    Hi. I have noticed hard calcium built up in 2-3 areas of my pool waterline tile grout. I keep on removing it but 4-5 month later it shows up again. This morning I drained the pool a couple inches below tiles (both sides pool and spa) and scraped the calcium off. I also thought it might be a...
  4. Brian Tucson

    Help - Newbie. Reviewed the threads before posting - remain at a loss. Subj: White cloudy haze pebble tec floor

    Problem up front: Cloudy / hazy white spots / streaks / runs on pebble tec floor (Not on the sides). Just a haze, so breaking a piece off to test for calcium type is not possible. Back to intro. So fortunate to have found this group. Thank you in advance. I have reviewed many of the posts...
  5. M

    Possible Calcium Deposits

    Hi - I have what looks like a calcium deposit in a corner of my pool as well as some spots on the horizontal surfaces. I did a SLAM a few weeks ago and have targeted FC to 5 to 7 since it was complete. Do I hit these with pumice stone? Anything else I should think about or being concerned with...
  6. A

    Help: Iron stains and white (calcium?) marks on tile?

    Hello all, I’ve been having tiny rust marks showing up on hot tub spillover edge as well as on a corner of the pool. I tried the vitamin c test, some came off and some didn’t. I’m assuming I have iron in my water? How can I remove it fully? I previously used small amounts of iron out on the tiny...
  7. 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...
  8. 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 -...
  9. E

    Can't get chlorine levels back up

    Update: I started following the SLAM method. Have used almost 9L liquid chlorine in 5.5 hours. Does this sound crazy ? 11am free chlorine @ 0. Added 2.8L liquid chlorine and got it >10. 2.30pm free chlorine @ 0, added 3L liquid chlorine. 3.30pm free chlorine @ 8. 4.30pm free chlorine @ 0...
  10. MoogMan

    1yr old fiberglass pool - white staining under waterline with balanced pool. calcium?

    Hi all, We have a 1yr old 10,000 gallon SWG fiberglass pool. I am prettty anal with water chemistry, checking and balancing every other day or so using Taylor test kit, and going by the ranges and levels suggested here and in the pool math app. Chemistry has been stable. I drained my pool...
  11. johig

    How to clean up my spillover, including a small leak?

    Bear with me, this is a question with a few parts. I understand that the "proper" solution to some of those parts might be to rip something out and start again. While I respect that opinion, that's not feasible for me at the moment, so I would appreciate other options, even if they are not...
  12. M

    Growth on tiles

    Hi, I have some growth on the tiles under and around where the water feature is. It appears to be some type of calcium buildup. I’ve tried scrubbing with a little acid but didn’t seem to remove much. Any idea what this is and how I can get rid of it? Thanks!
  13. M

    6 Week Old Pool with Calcium Hydroxide

    We just had our 30,000 pool replanted with Diamond Brite Blue Quartz 6 weeks ago. We brushed the pool like we were told to do 2 times a day fir the first week, then we were out of town for a week. Once we returned home things seemed fine. Pool looked great, but we found out the renovation crew...
  14. mmcwhorter

    Marcite Pitting In Spa When Opening Pool

    Hello and Happy Spring Opening to All: I have posted about this issue before, and here we are again.....the old thread was discontinued so I'll create a new one here: I have noticed over the last four years (including recently when I opened my pool) that our "raised overflow waterfall spa"...
  15. johig

    Course of action for hard water? Reverse osmosis? Water Softener? Both?

    My calcium hardness has gotten very high (~1,200) due to my local hard water supply and three summers of evaporation. I don't want to drain and refill due to the current severe drought. Unless I want to deal with high calcium forever, I think I need to get a water softener for my autofill line...
  16. T

    Help! Severe calcium buildup.

    It's been a while since I've been on here. Pool is 20x40x10ft. Short version, muriatic acid won't remove limescale, calcium deposits from pool walls. I don't know what else to try. Back story, the house we bought had been sitting for 2 years when we bought it in sep of '19. The pool was a...
  17. J

    New Pool Stone - Calcium or Efflorescence

    New pool owner here -- just finished construction a few months ago. I'm trying to determine whether the white stains on the natural stone of the raised spa around the spillway are calcium or efflorescence. The spillway from the spa shoots into the pool, but there is some small dribbling of...
  18. T

    Calcium Scaling Help

    Good Morning! We had a new pool put in this summer and we had some trouble getting the chemicals right. They are all good now but I have noticed on my grey fiberglass steps when the water level gets low they are white. I think its calcium scaling but my pool builder says he has never seen this...
  19. P

    White Calcium Flakes in Pool

    I balance my water every Saturday and didn't notice this last week. I saw white calcium flakes on my pool steps this morning. Near one of the returns. I pulled one out, dropped muriatic acid on it, it fizzed and bubbled so I'm assuming it's calcium. I checked the water chemistry: ph: 7.8 Alk...
  20. L

    Broadhead H20 to Prevent Calcium Buildup

    Does anyone have any experience with the Broadhead H2O system? I am in the process of building a new pool & I am trying to make it as maintenance free as possible. In the past I have been very careful about checking the saturation index and adjusting things to avoid calcium buildup...
  21. Briar

    Stain Removing: Cloudy Blue Water Stage

    Briar here. I am deep in the process of an ascorbic acid stain removing process for my 20k IG, Indoor plaster pool. Tested the steps with ascorbic acid in sock and had some fading. I bought the house 7 years ago and the pool was in atrocious shape. A local pool co. did a pretty thorough...