shower arm won't go on
I need some help here. I've successfully removed the old shower arm and I'm trying to put the new one on. It's the same size and threads as the old one, just without the swivel head. No matter what I do, the threads don't want to catch. Any tip/tricks out there? Thanks!
My guess is that either of the threads are damaged.If the old head can be put back on,then the threads on the new one are no good.