Currently the most common use of this drug, the general amount of 5 to 10 grams per m3 of water with a soda to adjust the water to about 7.5 in the PAC water diluted to 15%, evenly spilled into the pool; 4-6 When all the children were well settled, they were sucked off with suction machine. At this point after the end of sewage pollution water quality has been very clean, diluted with strong chlorine water spilled into the water. Strong chlorine, the solution is colorless or tan transparent liquid. Sometimes due to impurities and black, the effective chlorine content decreased by only 1%. Solid product aluminum chloride content of 20% to 40%, basic aluminum chloride content of about 20%, yellow polyaluminum chloride content & gt; The main component AL2O3 content of 30% +1 colorless or yellow resin granular solid, 1m3 water 15g. Liquid products containing aluminum chloride about 8%. Polyaluminium chloride to adapt PH value of 7 to 8. Poly aluminum chloride mixed in the hydrolysis process with coagulation, adsorption and precipitation and other physical and chemical processes. You can go swimming. Swimming pool water purification generally use the following steps, you can remove water suspended solids, except fluoride, in addition to radioactive contamination: coagulation --- clarify --- suction pool --- Disinfection polyaluminium chloride (PAC). Its effect is more than 5 times the alum, according to the determination: alias acid chloramphenicol, white crystalline powder, also processed into granular, flaky, is an organic chlorine disinfectant, not easy to decompose, stored in dry environment for 1 year, PH value Low use of this medicine, PH value increased by about 1 degree: inorganic polymers, hypochlorous acid is a strong oxidant, which can make the bacteria oxidative degeneration of the host bacteria, due to hypochlorous acid small, penetrating ability Strong, therefore, its bactericidal effect is high, in the same concentration dosing every m32 ~ 3 grams. Sodium carbonate (soda), white powder or fine particles, soluble in water, alkaline; 30%, except iron, except cadmium, trichloroisocyanuric acid (TCCA) hydrolysis almost all in the form of hypochlorous acid, In addition to floating objects, chlorine will be adjusted to 0.5-1.5MMP