Scale deposits can form along the waterline of your swimming pool. This is usually caused by either high pH, high alkalinity, or a high calcium concentration. Constant temperature changes along with rapid evaporation will cause deposits to settle along the side your pool wall. If the deposits are not removed soon, it can cause permanent damage to the pool surface.
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Donna Posted: 7/1/2021
I just replaced my above ground pool liner and just added water. the water in my village is very hard. I have white floating. What can I get for above ground pool/?Reply
InyoPools Product Specialist Matt S. Posted: 7/1/2021
You may use a flocculant or muriatic acid to try to lower the calcium levels. If the water source is high in calcium, it prevents you from doing the normal drain and fill.Reply
B Posted: 1/2/2019
I have a new pool and I've been following the suggested maintenance of my pool as recommended, but I have the worst build up of calcium on the brand new glass tiles. Will this product help me?Reply
InyoPools Product Specialist Robert M. Posted: 1/3/2019
Yes, an acid-based surface or tile cleaner will help remove the calcium build-up. We'd also recommend a product called Scale Free. This will help prevent future calcium scale.Reply
InyoPools Posted: 9/19/2018
Hello Richard - The first thing I would try is a pumice stone. A pumice stone can be used to rub the calcium spots off of the pool surface. You can then use a product called Scale Free to prevent the scale from coming back.Reply
Richard Posted: 9/13/2018
I had my pool plastered with Wet Edge plaster (pebble-tec) two years ago. The plaster color is medium to dark blue. This year I have experienced numerous white spots on the wails and floor of the pool. My pool service company tells me it is calcium. My PH level continues to be high but I try to keep the PH level at 7.4 by adding muriatic acid. My water tests perfect for hardness and calcium. What can I do to clear up this problem?Reply
InyoPools Product Specialist Dennis R. Posted: 8/29/2016
Bruce - The most used way to remove that much calcium from a pool is to drain it as you indicated. Another option is to have a company filter your pool water with a reverse osmosis (RO) system. If you have a company like PuriPool or Calsaway in your area, they would bring a portable system to your pool to filter it. Adding additives to remove that much calcium is generally ineffective.Reply
Bruce Posted: 8/24/2016
Ok, I have a pool with dark plaster. The pool is about one year old.I notice this white stuff all over the sides of the pool. I also noticed it on the bottom of pool. there are streaks(clean spots) where the pool sweep tail flip around. I have been doing my own chemicals. Well I took some water in to a pool service to have it checked. All chemicals were fine. He then checked for hardness, it was 1100. The pool is 18000 gallons. They sold me two jars of stain clear or something like that. I put it in two days ago, with no change in appearance today. Had the water checked to day no change. I live in California and of course everyone knows we have been in a drought. If I drain 9000 gallons of water my neighbors and the city will freak. Is there any other alternatives or do I just live with Freaky neighbors?Reply
InyoPools Product Specialist Dennis R. Posted: 7/12/2016
Robbie - For the scum marks on the upper wall and grout, many people and used half a 3" chlorine tablet to scrub over the affected surfaces. Use gloves. The scale on the bottom of the pool will have to be brushed off with a stiff brush.Reply
Robbie Posted: 7/11/2016
Hi I have just purchased a house with a indoor pool. The pool has been empty for about a year and a half and is of concrete construction with a tile bottom and top of the wall's.There is a think scale on the bottom of the pool and like a think scum mark on the wall tile's. I have tried to jet wash off with not much help could some one please advice me on the best way to clean the pool of scum before I start to re-grout..
Thank You
Robbie
Reply
InyoPools Product Specialist Dennis R. Posted: 2/24/2016
remove calcium - Your pool filter cannot remove calcium in your water. You will have to drain part of your pool and replace it with fresh water. If you have very hard water in your area, you might consider installing a water softener.Reply
Anonymous Posted: 2/23/2016
Hi. I just used a razor to remove high calcium buildup on the pool tile, it was thick and scraping was the only way to remove it. The pool has not been open since sept, so there is no chemicals added yet. To lower the calcium level now, can I run the filter for awhile? OR do I have to drain half the pool?? I would rather not have to drain any water.Reply
InyoPools Product Specialist Dennis R. Posted: 8/1/2015
calcium deposits - Your first step is to get your pool chemicals in balance. Take a sample of your water to a local pool store and have it tested. They will print out what is out of range and list what chemicals to add to correct your problems. Most likely your hardness and pH are too high. If your hardness is above 400, you will have to dump some of your pool water and replace with fresh to reduce the hardness level. This will stop calcium deposits and reduce calcium buildup. You may have to brush the bottom of your pool to work the existing calcium off.Reply
Anonymous Posted: 7/31/2015
I have calcium deposits on the bottom of my pool. The pool has gray plaste. How do I remove the calcium from the deep end of the pool?Reply
InyoPools Product Specialist Dennis R. Posted: 7/25/2015
bitz - Your rough surface is probably calcium which probably means your pool's hardness level is too high. Take a sample of your pool's water into a pool store and have them test the chemical levels of your pool. All chemical should be in balance but pH, Alkalinity and Hardness and critical to resolve this problem. Follow their instructions on what chemicals to add to get your pool in balance. If your pool's hardness level is above 400, you will have to dump some of your pool's water to reduce it to 350 for a little buffer. If the calcium buildup on your pool liner is severe, you may have to replace the liner.Reply
bitz Posted: 7/25/2015
I have a rough raspy build up of some sort on the pool bottom and sides of the liner under the water level. Where did it come from and how do I clean it off?Reply
InyoPools Product Specialist Dennis R. Posted: 7/22/2015
Calcium Deposits - I would apply the Tile & Vinyl Cleaner on the water line with a long handled sponge, let it sit, and brush it off with your pool brush. Follow detailed instructions on the bottle. I would not leave the calcium deposits on too long. As soon as they are obvious, balance your pool chemicals and remove the deposits. The longer they are on your pool surfaces, the harder they will be to remove and the greater chance they will cause permanent damage.Reply
Anonymous Posted: 7/20/2015
How long can the calcium sit there before damage can occur to the pool?Reply
Anonymous Posted: 7/20/2015
Can this be done without having to get in the pool?Reply