I am looking for 3/4" polybutylene crimp couplings. I have used some of the 8000' of useless pipe I am sitting on for an irrigation system in my garden. I made a 20'x20' grid with 2' rows and drilled holes about every 1' along the top of the piping. The entire thing is buried about 1.5" below the ground so no UV light hits it. It works great as long as it is level and doesn't leak (haha). Email me at Jfairc3566@aol.com if you have some.