DrewE wrote:
I'm curious what you're attempting to accomplish with pressure testing. You know you have a leak somewhere, be it in the regulator or elsewhere. Pressure testing would seem to me to only demonstrate that you have a leak in the regulator or elsewhere, but not get you any closer to fixing it.
Or are you planning on bypassing the regulator for the test? What pressure would you test at? The propane system is usually under quite low pressure, well under 1 psi. Testing at significantly higher pressures would seem to me to be as likely to cause leaks and damage as find them, at least if one is not careful to disconnect the various appliances and their valves, regulators, etc....and one would still want to test them with soapy water after reconnecting everything to make sure no new leaks have been created.
If testing at pressures make sure all appliances are disconnected. When we remodeled our house and added a gas cook top, gas logs in fireplace, and a BBQ connection. I needed to replace all of gas piping in the house due to existing pipe size. Inspection for the new system required to hold 15 psi for 15 minutes! I pressurized to 30 psi overnight, fist thing in the morning if had dropped to 28 psi, and by the time the inspector arrived it was back to 30 psi as the air warmed.