SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

Hi I have 2 questions. 1. I accidentally cut my in ground pipe for sprinker system when digging my beds. I have it uncovered. Its right at the top of the bed and easy to get to. The pipe is black and appears to be 1 1/4 thick. There is a gash in the pipe. Should i use slip pipe. or coupler? I am having hard time finding the pipe/and the parts. if I order just a piece of pipe, I only need about 6" on this site, I only saw pipe smaller than what I need, plus it comes in big rolls. (2) coming out of my house there is a metal pipe that makes a 90 degree turn down. this connects up standard hard pvc pipe that goes into the ground over to the box where all the valves etc connect. Anyway, the threaded pvc piece that went into the metal pipe cracked. so i need to replace about a 2' section. this section is removable. there is a union 2' below the end of the metal pipe. so it can be removed. my question is can i use flex pvc pipe? the rigid is what i have now. but my guess is that it cracked due to moving of the pipes, since its not a perfect line. where the metal pipe ends and where the pvc goes into the ground is about 10 degrees different. so the rigid pvc pipe is at a slight angle. can i use rigid if temp in cleveland ohio gets to about 30 below. if not, do you know where i can get a 1" union and a 1" slip to 3/4 threaded reducer. thanks