The answer to 'how to clean pipe' is to regularly clean the interior of your pipes to remove buildup and prevent clogs. This involves using a pipe cleaning tool or chemical cleaner to dislodge and flush out any debris, scale, or residue that has accumulated over time.
It's recommended to clean your pipes every 6-12 months, or more frequently if you notice slow draining or other signs of buildup. Be sure to follow the instructions on any cleaning products carefully and wear gloves and eye protection. If you encounter a stubborn clog or have concerns about the condition of your pipes, it's best to call in a professional plumber to inspect and properly clean the system.