Water piping systems can be tested with what pressure of air?

When testing water piping systems with air, a common practice is to use a pressure of 50 psi. This pressure is considered sufficient to ensure the integrity of the piping system without exceeding the thresholds that could risk damage or failure. Using 50 psi strikes a balance between providing a realistic test that can identify leaks and not placing excessive stress on the system components, which could lead to incorrect results or potential hazards.

The testing pressure helps to ensure that any weaknesses or leaks in the piping materials can be detected prior to the system going into operation, promoting safety and reliability in water delivery systems.