What is the maximum height for a clothes washing machine stand-pipe receptor?

The correct maximum height for a clothes washing machine stand-pipe receptor is 30 inches. This measurement is determined based on plumbing codes and guidelines established to ensure efficient drainage while preventing overflow and backflow issues. A stand-pipe that is too high may lead to inadequate drainage, which can cause the washing machine to malfunction or discharge water improperly.

The 30-inch height allows for a proper balance between the washer's discharge hose elevation and the gravitational flow of wastewater into the drainage system. Keeping the stand-pipe within this height restriction helps maintain proper hydraulic conditions and complies with health and safety standards in plumbing design. Such specifications are critical to ensuring that drainage occurs effectively, thereby minimizing the risk of plumbing-related problems.

Understanding these standards is vital for a plumbing contractor, as it affects both the installation process and compliance with local codes. The selected height of 30 inches is designed to facilitate optimal performance of washing machines while safeguarding plumbing systems from potential complications.