Hasa Gysar F Tile Brite Thick Liquid Tile Cleaner 1 Gallon P/N: 77041 Gysar Tile Brite F was developed especially for the pool service professional. The thick, opaque gel like tile cleaner means one application of Gysar Tile Brite F to your brush is all you will normally need to completely clean an average residential pools tile. Gysar Tile Brite F is an excellent tile cleaner by itself but it can be mixed with muriatic acid to become a very effective way of removing oils and scale build up.