What is the minimum height the vacuum breaker on a Flushomatic valve should be above the top of a urinal?

The minimum height for a vacuum breaker on a Flushomatic valve above the top of a urinal is established to ensure proper sanitation and prevent any potential backflow of contaminated water into the potable water supply. A vacuum breaker is a crucial device that prevents siphoning of water and helps protect against back-siphonage.

Setting the height at a minimum of 6 inches above the urinal ensures that there is an adequate air gap, which is vital to maintaining the integrity of the water supply system. This distance minimizes the risk of the urinal’s wastewater backing up into clean water lines, which is a key plumbing code requirement. The 6-inch standard aligns with plumbing regulations outlined in various building codes and sanitary practices, reinforcing compliance and promoting public health safety.

Ensuring the vacuum breaker is installed correctly at this height not only adheres to regulatory standards but also enhances the overall functionality of the plumbing system in preventing cross-contamination.