My tiles have crusty white deposits…
Called efflorescence, this calcium deposit usually originates from grout or setting mortar. To remove, scrape it off the tile/wall, and/or acid wash it. There are products available such as CLR (Calcium, Lime, Rust remover), which can be purchased at your local hardware store, will work well for such tasks.
Another method for removing calcium deposits is the pumice stone. Pumice is a light porous glassy lava stone that can be rubbed over a pool stain to remove it. You can get a pumice stone that can attach to your tele-pole or a pumice stone that has a handle you can swim with. Works great on cement stains, berry stains and paint.
ABC’s professionally trained Pool & Spa technicians pride themselves in keeping your pool or spa in top working condition. Whether you’re looking for dependable maintenance and upkeep or timely repairs, we’ve got you covered with the quality service you’ve come to expect from the ABC family.
Information Courtesy: www.poolcenter.com