78puget-trawler
Guru
Have this new to me boat, the 34 CHB of course. In going thru various systems today, had a look at the propane tank and the gauge showed zero pressure. Went and had the tank filled but it was obvious it was near full already. Tank had this weird fitting on top between the regulator and the fill connection. I took that fitting off and put it back together without it, and had 100 psi instantly. So this fitting is a Marvel Schebler Century fuel lock- off I guess, saw a couple on ebay. I have never seen such a gizmo on a propane tank before and it works without it, so do I need this goofy thing on my tank??