ScottG wrote:
Yep, that's Qest tubing. You can still get fittings at some H/W stores and it's really pretty good stuff if you use said fittings or COPPER crimp bands. It got a bad name when they introduced aluminum crimp bands. Those would eventually stretch and cause a leak (in my case at 2:00 AM).
Right it must go with tides, mine parted at about the same time. What a mess that was.
The OP should seek assistance or research plumbing a good bit. I've never met an owner or plumber that was so hard up that he couldn't ditch that quest pipe and put something better in it's place. BTW, there is no good glue for quest, AFAIK. It also gets hard and brittle in 40 years.
And yes, Sharkbite may fit quest. Its sealing ring fits a range of diameters.