I didn't want to glue because I can't get the area very clean. I did go to home depot with a piece of the tubing. IT was black,maybe 1 1/8 inch pipe, seemed very cheap. They didn't have any of the pressure couplings you are talking about which I wanted. The only thing they had was the metal pipe. If this is most likely going to leak I guess I will go back and dig it up. Gotta love those simple jobs that turn into a nightmare.