Drilling Thiner CX-WELLCLEAN is used in the development and clean up of water wells where bentonite-based mud has been used Advantages: SMD Drilling polymer CX-WELLCLEAN breaks down the viscosity of bentonite mud and will destroy any wall cake that has formed on the walls of the drill hole, promoting rapid and effective clean up. After the well screens have been run and set, jetting and surging with CX WELLCLEAN and or a water mix will promote rapid, deep penetration of the aquifer and assist the well clean up Recommended Treatment: 3-5 kg per 1000 litres to clean water for jetting/surging through the screens or gravel pack.