I went camping in Lake Tahoe over Labor Day with friends. The good news is my 60 year old fridge, with my homemade fix, got down to 20 degrees! The bad news is we smelled propane. I bought a propane sensor, got a bottle of soapy water, and went to work. The sensor started screaming at one of the T joints under trailer. I saw a kink in one of the joints where it joined the T. I pulled off the copper line, cut off the end, and put a new flair on the end. I retested and no leak! Here is the propane sensor. Techamor Y201 Portable Methane Propane Combustible Natural Gas Leak Sniffer Detector https://www.amazon.com/dp/B07BM1XWB8/ref=cm_sw_r_cp_api_i_QVSxFbCRSC25Y.