What is the correct mounting height for a Reduced Pressure Zone (RPZ) device?

The correct mounting height for a Reduced Pressure Zone (RPZ) device is generally specified to be between 12 inches to 5 feet above ground. This height range is established to ensure proper function and maintain accessibility for inspection and maintenance. Mounting the device within this height range allows for its effective operation by minimizing the risk of flooding, as RPZ devices require a specified amount of space for air gaps and drainage.

Additionally, this height ensures that the RPZ is above the potential flood level in a typical plumbing installation, which is essential for backflow prevention. Installing the device too low could hinder its performance and violate plumbing codes. This range balances practical installation considerations with the operational requirements of the device, making it crucial for maintaining safe water supply systems.