PVC-U pipes are a commonly used piping material with advantages such as corrosion resistance, heat resistance, and pressure resistance; however, some common problems may still arise during use.

　　I. Leakage Problems: After a period of use, PVC-U pipes may leak due to aging gaskets or loose installation. The solution is to replace the gaskets or reinforce the installation in a timely manner to ensure that the pipe connections are well sealed.

　　II. Deformation Problems: PVC-U pipes are susceptible to deformation under high temperatures or external forces, affecting the pipe's performance. The solution is to select high-quality PVC-U pipe materials and avoid external damage during installation.

　　III. Clogging Problems: The inside of the pipe may become clogged with debris, causing a decrease or stoppage of pipe flow. The solution is to regularly clean the pipes, prevent debris from entering, or use pipe clearing tools.

　　IV. UV Aging Problems: PVC-U pipes exposed to sunlight for extended periods will undergo UV aging, causing the surface to become brittle and fragile. The solution is to use PVC-U pipes with UV-resistant coatings or to apply regular protective treatments to the pipes.

　　By understanding common problems and solutions for PVC-U pipes, users can better maintain the piping system, extend the service life of the pipes, and ensure the normal operation of the piping system.