This was the first trip where I filled the black tank developed a hair line leak at the bottom on the of the connection where the tank is joined to the black pipe. First three trips were in cool too cold weather this trip 90 F + for five days. As I didn't want to move went to a local RV dealer in Manchester TN he recommended JB Water weld. Drained tank cleaned fitting applied epoxy so far no leak. Had a 1 ft round spot on ground that I treated with Bleach and then washed and retreated. Cleaned up the smell and the discoloration. Has anyone else had this problem?