I have a leaky backflow preventer I'm trying to remove. It's been on for most of 10 years, and we've got pretty hard water. I've drilled out the set screw:
I have some channel locks that I can use to try to remove it, but it looks like the pipe for the spigot is bent, and when I apply pressure to remove the backflow preventer with the channel locks, it seems like it's going to bend it further to the left:
Is there something I can do to get the backflow preventer off that will not risk bending the spigot more, potentially bending or damaging the pipe supplying it?
I've sprayed a bunch of WD-40 on it, but it still doesn't budge. It seems like maybe I need to drill out more around the set screw, but I'm concerned I'll damage the spigot threads.