👉 The term "topdressing" is a term used in plumbing and water treatment. It refers to the process of cleaning, removing, or replacing debris from pipes and other plumbing systems. This can be done through various methods such as using chemicals, mechanical tools, or specialized equipment. In general, topdressing involves removing any dirt, grime, or other buildup that may have accumulated on the surface of a pipe or other plumbing system. The purpose is to improve the performance of the pipes and