Originally Posted by oldred
Just scrap the line and go down to the hardware store and get a new plastic line with some new brass ferrules and make sure that you get the little brass insert that goes INSIDE the line to support it when the ferrule is tightened. It sounds like the insert is missing and if that is the case even if the ferrule crimps properly on a plastic line it will simply collapse and slip out no matter how tight you get it if that insert is missing. The whole outfit will only cost about 4 or 5 bucks, maybe less.
I tried super gluing the little brass insert on to the slightly sanded plastic hose tip. So far, so good. The little brass insert is not completely round, I tried a slight crimp a month ago to no avail. Crimped it again back to round but couldn't perfectly. If this super glue doesn't work, I'll follow your suggestion. I wonder if my local ACE Hardware even has that little brass insert? As you know, it's tapered.....thanks!