PVC pipes, when used for water supply and drainage systems, may develop bacteria and other contaminants over time due to varying water quality. This could affect their lifespan and performance. Here are some points for cleaning and maintenance:

Chemical Cleaning: Add chemical cleaning agents and dispersants to remove scale, sediment, and oil污 from the pipeline system, disperse them out, and restore the surface to a clean state.

2. Sterilization and Algae Elimination: By adding sterilizing agents to the recirculating system, various bacteria and algae in the circulating water are eliminated.

3. Surface Pre-film: Introduce pre-film agent to form a dense polymer high molecular weight protective film on the surface, serving as corrosion prevention.

4. Routine Maintenance: Add corrosion inhibitors and scale inhibitors simultaneously, which, through their combined action, prevent the crystallization and precipitation of calcium and magnesium ions. Regular sampling and water quality monitoring are conducted.