... gone. 2,Contains metal corrosion inhibitor 3,Super concentrated 4,Time saving Calci Gone is the ... according to color change judge whether system is clean. Containing metal corrosion inhibitor can ensure that ... , water into red show tht system already clean.8, Before removing wastewater, Please neutralize Sodium ... , Urine,mineral deposits&cement scale4, Super Concentrated5, Time saving Comstar Calci Gone ...