Finally getting back to this, looking for some more advise. Living in the northeast I need to winterize my system. I’m curious if fitting placement as well as swing pipe angle is important. If My lateral is parallel to a slope, should the swing pipe be downhill so the water drains better when blowing out the system? Or uphill so water won’t pool in the sprinkler head connection? For the same reason, should the fitting off the lateral be at the bottom of the pipe for drainage or off the top so the fitting won’t freeze? I would imagine the 1” poly would be less likely to burst since it would have more room for expansion than a 1/2” pvc fitting, or a plastic sprinkler head. Maybe I’m over thinking it but I would hate to fight split plumbing every year when it could have easily been avoided. Thanks for any help you can offer!