What is one of the main reasons for conducting a main drain test?

One of the primary reasons for conducting a main drain test is to verify water supply pressure. This procedure involves opening the main drain valve on a fire protection system and measuring the flow and pressure of water that comes out. The data collected helps to ensure that the system can deliver adequate water flow and pressure in the event of a fire, which is crucial for effective firefighting operations.

Verifying water supply pressure is essential to confirm that the system is functioning as designed and that there has been no degradation in the water supply that could compromise the effectiveness of the sprinkler system. This test also helps to identify any potential issues with water supply lines or any changes in hydrant performance that could affect the overall system reliability. Conducting this test regularly is a key aspect of maintaining fire safety and ensuring that the water-based suppression system meets local codes and standards.