I installed a new line... it's actually 2 lines with a connector. I bought the 15' copper water line packages from Home Depot... so it's 30 feet now. At first there was very little pressure to the fridge, so I went under the house to inspect the line. It wasn't leaking, but upon moving the copper piping just a little bit, one of the lines just popped out of the nut that was attached to it. (The copper lines in the packages have 2 different ends. On one end, it's a little rounded off and has an indentation so you can slide the nut over the end and it doesn't go past the indent. On the other end, it's a straight cut off so you can slide the nut to wherever you want.) Well for some reason, now the piping just pops off the nut whenever there is water pressure. This is a problem with the rounded off ends that have indentations... when you screw the nut in and add pressure, the line pops off. On the ends that have a straight cut, I slide the nut on a little further then bend the very tip of the line so that it can't slide off of the nut. AND it's extremely difficult to make a perfectly flat cut to an end. I've been trying to do all this while in the crawl space under my house. Extremely frustrating and MUDDY!
This must sound confusing. Does anyone know what I'm talking about? How do these copper lines with the sliding nuts work so that they don't leak or pop out under pressure???