The patented ScaleBreak®-Gel finds the scale and dissolves it on contact. It is a low viscosity, gel-like acidic product, formulated to adhere to and descale mineral deposits from cooling tower fill, or other vertical surfaces. Works with our TFC-200 Cooling Tower Fill cleaner only. (1) 5-gallon pail of Gel is enough for (1) 10’x10’ section or 100 sq./ft. of tower fill.