Hydrostatic testing uses a minimum pressure of:

Hydrostatic testing uses a minimum pressure of:

• A. The maximum water pressure in a residential home during normal operation.
• B. Minimum pressure required during a hydrostatic test to check for leaks.
• C. The pressure used to operate fire alarms.
• D. The pressure for daily hydrant testing.

Answer: (B)

Hydrostatic testing is about verifying the integrity of piping by filling it with water and pressurizing it to a specified test pressure to reveal leaks. That test pressure isn’t the system’s normal operating pressure; it’s a defined minimum that’s high enough to force leaks to show up so you can detect and fix weak joints or cracks. It has nothing to do with operating fire alarms, daily hydrant testing, or the maximum water pressure a residence experiences during normal use. So the purpose is to use a minimum pressure during the test to check for leaks.

Hydrostatic testing is about verifying the integrity of piping by filling it with water and pressurizing it to a specified test pressure to reveal leaks. That test pressure isn’t the system’s normal operating pressure; it’s a defined minimum that’s high enough to force leaks to show up so you can detect and fix weak joints or cracks. It has nothing to do with operating fire alarms, daily hydrant testing, or the maximum water pressure a residence experiences during normal use. So the purpose is to use a minimum pressure during the test to check for leaks.