The Concrete Countertop Institute's Sludge Buster is designed to handle and recycle waste water in concrete countertop shops. The product collects, treats and recycles waste water produced from wet grinding and cleaning tools and equipment. The Sludge Buster consists of a three-stage barrel that has a 23-in. diameter. The fabricator uses a shop vac or other means to collect the waste water. The Sludge Buster filters out and separates aggregate, sand and fines and chemically treats the water. The resulting water can be captured for reuse or disposed of down the drain or outdoors and the resulting clean aggregate and sand can be reused.