In new construction, a floor drain or floor sink must be located within how many feet of a water heater?

The correct answer is based on plumbing regulations that aim to ensure safety and facilitate effective drainage in the event of water heater leakage. In new construction, having a floor drain or floor sink located within 10 feet of a water heater is crucial. This ensures that any potential water that may escape from the water heater is efficiently channeled away, thereby preventing water damage to the structure and maintaining a safe environment. The 10-foot distance is a standard enforcement guideline that balances accessibility for maintenance while reducing any risk associated with overflow or leaks.

In contrast, distances greater than 10 feet may not provide adequate immediate drainage, posing a risk for water accumulation, which could lead to more significant damage or safety issues. This practice aligns with the broader aim of plumbing codes to enhance the safety, functionality, and efficiency of plumbing systems in buildings. Understanding these guidelines helps in ensuring compliance with local plumbing codes and maintaining proper installation standards.