Calcium Buildup on Pool Tile in Tucson
If you own a pool in Tucson, you have probably seen it: a chalky white band creeping along the tile right where the water meets the wall. Scrub it and it barely moves. Ignore it and it gets thicker, grayer, and harder every summer.
That white line is calcium scale. Tucson’s hard water, desert heat, and constant evaporation push dissolved calcium out of y…