Sorry for the multiple questions in the same day, but I am at a loss to explain what is going on with my tub's faucets. Currently the cold water side will not stop dripping. I have replaced the stem, the seat on the hot cold and diverter, but it continues leaking. I realize after doing this a couple of times that I cannot overtighten the seats because they are soft brass. I did notice the washer I put in just last week were all twisted. Initially it was the hot water side that was dripping, I had a plumber come in three times to fix that problem, the second and third times were free because it was for the same issue. I paid the guy separately to put in shut off valves for the hot and cold just so that I can shut them off at night. Can anyone shed light on this? Desperate in NJ with my upstairs shower also having an unexplained leak.

Sorry for the multiple questions in the same day, but I am at a loss to explain what is going on with my tub's faucets. Currently the cold water side will not stop dripping. I have replaced the stem, the seat on the hot cold and diverter, but it continues leaking. I realize after doing this a couple of times that I cannot overtighten the seats because they are soft brass. I did notice the washer I put in just last week were all twisted. Initially it was the hot water side that was dripping, i had a plumber come in three times to fix that problem, the second and third times were free because it was for the same issue. I paid the guy separately to put in shut off valves for the hot and cold just so that i can shut them off at night. Can anyone shed light on this? Desperate in NJ with my upstairs shower also having an unexplained leak.
I should qualify my post, my faucet is a three handle delta faucet with the divertor in the middle. Also my house has high water pressure, 80+psi

" My house has high water pressure, 80+psi."
Almost twice the normal house pressure of 45 PSI. (That's why water towers are 100 foot high). You should have a PRV (Pressure Regulating Valve). Dial it back to 45 0r 50 PSI amnd let me know if you still have leaks. Higher pressure will put a strain on pipe joints and the "O" rings and packing in your faucets. Regarfs, Tom

Tom,
My PRV I think is shot, I tried to adjust it, but it only goes down to about 80 psi, does a older house need a lot more PSI. By the way, I have a 3/4 inch feed from the street atht goes down to 1/2 inch past the PRV.

More pressure doesn't mean more volume. Your house pressure should run between 40 and 50 PSI. Get that faulty PRV replaced. Good luck, Tom