Our older pool has severely discolored grout, along with a really nasty calcium buildup on the tile. Our local pool products company said the grout discoloration was from the chemical reation between the pool heater's copper elements and the chlorine in the water. The grout is now a brown color - probably used to be white. How do we restore the color in the grout - and what can we do to get the calcium buildup off the tiles (muiatic acid is slowly having an impact)?
Thanks,
Mike
Severely discolored grout
Re: Severely discolored grout
you should drain the pool and acid wash to get rid of the scale. this will also clean the grout somewhat. acid washing softens and erodes the grouting so should be done with extreme care
Severely discolored grout
Some folks manually scrape and gouge the old grouting out after the acid wash. I saw it being done with these hook-like tools. Then they pressure washed the pool and regrouted.
Our pool has grey grouting so we don't notice any dirt or discoloration.
Our pool has grey grouting so we don't notice any dirt or discoloration.
Severely discolored grout
Unfortunately, the only way to descale swimming pool tiles safely is to have them blasted away using glass bead or dry soda blasting. When we clean pool tile, we only need to drain the water a few inches below the tile line. We then us a very low pressure of 20 PSI to media blast the calcium and scale deposits away from the surface of the tile and grout. There is more info here. PoolTileCleaningPro.
Severely discolored grout
my grout has some discoloured areas, grey, someone suggested putting in salt approx. 6 or 8 25kl bags, has anyone heard of this before and could it cause any damage
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- My Pool: My pool is a rectangle shaped pool which is 5.5 feet deep and is of dimension 10*20. We use hayward pump and pentek sediment water filter for our pool.
Re: Severely discolored grout
If you have calcium scaling in your pool tile, you can remove them by muriatic acid or dry acid dissolved in water. These can remove the calcium deposits in your pool. You can also use magnetic water conditioner to prevent calcium deposits in future.
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Re: Severely discolored grout
Nice Ideas..
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