What is a safe practice when purging a new hose or regulator before dispensing?

• A. Open the cylinder valve briefly to push air out of the line, then connect regulator and check for leaks
• B. Open the cylinder valve fully and connect regulator, then check for leaks
• C. Purging is unnecessary
• D. Disconnect hoses and test after dispensing

Answer: (A)

Purging a new hose or regulator is about clearing out air so propane can flow safely when you start dispensing. The best approach is to open the cylinder valve just briefly to push air out of the line, then connect the regulator and perform a leak check. This controlled purge uses a small amount of gas to displace air, preventing air pockets and ensuring the line is filled with propane under the regulator’s control once everything is connected. Opening the valve fully before attaching the regulator releases gas uncontrollably, which is dangerous and difficult to manage, especially near ignition sources. Purging is necessary, and the connections should be checked for leaks after assembly (with a soap solution, for example) before you begin dispensing.