Chemical dosing system is widely applied in corrosion, chlorine dosing, Chemical Dosing scale inhibition, sterilization and algae removal of the circuiting water systemssuch as air-conditioning cooling water, chilled water, water pipelines, Sewage Treatment, Water Treatment, Ice storage, etc. The chemical dosing system can also achievethe effect equivalent to the electronic descaling instrument. In the process of air conditioning circulating water and various purified water, the water quality always decides if the system can run efficiently for a long time. The pipeline corrosion, scaling, microbial propagation and other common problems of circulating water always disturber the owners.