... , reddish brown granule/FlakePAC use precautions, and dosage1, according to the different raw water conditions, can do small trial ... for drinking water treatment. UseA, urban water supply and drainage cleaning: water, groundwater, river water, reservoir.B, industrial water purification.C, ... damp. How to use1, use should be made according to the quality scale, elect water purification effect is good, ...