Propane leak discovery problem

[mything2]

My 2007 Interstate has a propane leak which drained the tank from 3/4 full to empty in 4 days. I know how to discover the leak location when there’s still propane in the tank (soapy water and bubbles) but what do you do when there’s no propane pressure?
Appreciate input.

 

[Kajtek1]

Hook up air compressor to it.

 

[marklg]

If you fill with air or even if it is empty, make sure the filler purges the tank on next fill. You may consider going to an actual Propane dealer, who can properly find, fix and pressure test the system.

Regards

Mark

 

[Midwestdrifter]

Charge the tank with 100psi of nitrogen, argon or CO2. Do not use air.

The most common leak point on propane systems is the regulator.