Thanks guys for more advice. Yes the walls are drywall in the garage. I know because when I was installing some cabinets years ago, I drove a screw right through the drywall into a drain pipe thinking it was stud and as a result created a pinhole leak…I found out about it when my drywall ended up being a dampwall a few weeks later, and ended up ripping it out and replacing it. I guess worst comes to worst I can bust it out.
Why of why did I not cover up the pipes when I spray painted the walls of my garage years ago… :(.
Looks like I’ll need to stock up on a lot of elbow grease.