Calcium Scale

[dubele]

Hi,
I get calcium scale around the pool and especially below my sheer descents. Using a pumice stone for removal is time consuming and doesn’t usually get it all. Plus, getting in and out of the grout lines is really difficult and removes grout. Is a mix of muriatic acid and water safe to spray on the wall for removal?
Thanks,
Doug

 

[AQUA~HOLICS]

A pumice stone is harmful to the glaze of the tile.
SR3 has an acid base to it and it is very thick so it will cling to the vertical tiles.

 

[Rancho Cost-a-Lotta]

There was a member that had positive results by making a paste out of Barkeeper's Friend and using Saran Wrap over the top to allow the acidic mix to soak into the scale. Seems like it might work for the area under the sheer descents. It might be worth a try if you have some laying around the house.

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...

www.troublefreepool.com

 

[dubele]

Thank you both.

Does anyone have experience with a mixer solution of Muriatic acid to water?? I soaked my swg cell last week in a 10:1 ratio and afterwards I poured down the wall. It melted the scale away. My question is if it is safe……I know it works, but is it safe on the grout?

 

[Rancho Cost-a-Lotta]

You can use 1 part of muriatic acid with 3 to 4 parts of water to remove scale. You should wear eye protection and gloves. It may require some scrubbing.