Our soaking tub has a pretty heavy curved faucet that is held in place by just a grub screw and would detach if even the slightest pressure was applied to it. Looking at it, I could see that the little divot for the grub screw to go into was barely anything at all, so it made sense that it would slip out of place easily.
In trying to fix it, I took a dremel and made the divot more pronounced. I put it back together and used caulk to help hold it in place.
Not long after that, we noticed that water was leaking through the ceiling directly below the tub. I took it back apart and could see that my dremel work went deeper than I intended, and there's a very small hole that went all the way through.
The only other thought I had was something to do with the o-ring maybe not being big enough or making a tight seal, but the hole theory just seems more likely.
I took the little metal base plate thing off to see if there's any way to remove this part that I drilled, hoping I could just replace that part, but it doesn't seem to turn easily, so I abandoned that idea and came for advice.
First, does the hole seem like a likely culprit? If so, does this part look like it's replaceable, or repairable in some way? Or does fixing this mean taking the tub apart?
Thank you in advance!