Redoyourpool – Quartz. We use 3M Colorquartz in our quartz pools, generally regarded as the best color quartz available.We use 3M Colorquartz in our quartz pools, generally regarded as the best color quartz available. People choose quartz for beauty (colors) and durability. Quartz is an “7″ on the hardness scale compared to marble sand (what it replaces) at a “3″ (diamond is “10″).![]() |
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The pictures graphically show how Muriatic acid (pool acid) literally eats calcium carbonate (marble, the basic ingredient in plaster) and does not react at all with quartz. Click on the video link for an even more dramatic demonstration with quartz and marble sand. See the video.


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