Originally Posted by GraemeInCanada
......I always disconnect the propane tank when not in use so I've never worried about it leaking off all over the place. The setup came with the boat 4 years ago when I got it and I haven't had an issue with it so didn't put anymore thought into it really......
I'm not the zealot on this topic, but the argument is that they are more prone to leak when you put them on and take them off. The disposable plunger inside is argued to get stuck, loose, etc, from repeated use. Leaving them connected, puts you at risk for a charged system leaking. If you just buy the inexpensive caps that I linked, the issue seems to disappear to me.