Waterline tiles can create a great look or style but it isn’t just for looks. Pool finishes need to stay wet for maximum durability and uniform color. Since tile can be wet or dry and resists staining, it is installed beneath the coping to avoid stains from fluctuations in the water level.  Without this tile protection, you would constantly have to scrub and repair the top edge of your pool surface at the waterline. See the bare surface reaction when the water level is left sitting below the waterline tile for a short period of time(picture above).   Read More