I have a standard two-handle faucet in my shower. I noticed a drip from the faucet, and decided to repair this. The rubber seal on the hot water side was completely ruined, so I figured this was the problem. I replaced the stem, which improved the situation but did not seem to cure it.
I then learned that a damaged valve seat can also cause leaks. When I looked into this, it seemed that I do not have a valve seat on the hot side (as compared to the cold side). Is this correct?
That being said, I also do not see any threads to install a valve seat now. So maybe this is normal? Or maybe it is just some kind of "flat" seat?
I'd really appreciate some advice how to proceed.
EDIT The only marking I see anywhere is "Jameco Canada". But that is on the handle cover plate, so I am not sure that is actually part of the faucet. (You can actually partially see this marking in the "hot water" photo above.)
As requested, adding a couple of photos: