... (OH) 5 Polyaluminium Chloride use precautions, and dosage 1, according to the different raw water conditions, can do small trial first before ... , purified water is better than aluminum sulfate flocculant, compared to the cost of water and low 15-30%.B, sedimentation of ... used, amount of non-drinking water should be selected according to the actual situation.2, when using solid, and water dissolved ...