What is the maximum length that piping for continuous waste should extend?

The correct answer is based on plumbing code regulations, specifically the requirements for continuous waste piping. The maximum length that continuous waste piping should extend is 30 inches. This standard is in place primarily to ensure proper drainage and prevent clogs. Continuous waste is used in sink installations where water flows continuously from one fixture to another, and limiting the length promotes effective gravity drainage. If the piping were to extend beyond this length, it could lead to insufficient flow or increased likelihood of blockages due to the potential for a decrease in the gravitational pull on the water as it travels through longer pipes. Code compliance is crucial for both safety and function in plumbing systems, highlighting the importance of adhering to these specified limitations.