Since I just installed an extend-a-stay on our RV,
I thought this website might be useful to someone.
I have a lot experience with compressed gas systems of different
types in the semiconductor industry. But its very difficult to leak
check with out all the fancy equipment I had access to there.
On the install of the Propane Extend-A-Stay I used the goop that kids blow bubbles with to leak check.
I hope you all find this link of some use
๐Propane 101 Leak checking