We have an old delex two tap kitchen sink faucet. Two weeks ago it started dripping and I replaced the cold valve stem. Stopped the drip and moved much more freely than before. Decided to go ahead and replace the hot valve stem since it’s likely just as old and felt so stiff compared to the new cold stem.
Replaced the hot stem 3 days ago, then last night it was flowing a little when turned off. If turned a few millimeters towards the open position it became a slow drip, but never fully stopped.
I took out the hot stem and seat, didn’t see anything obviously wrong, so just reinstalled them and the drip stopped. About 2 uses of the hot tap later the drip came back.
Also, when I first replaced the hot stem, the cold tap became stiffer to turn like it used to be prior to replacement.
Should I just get a new hot stem and hope that one works better? Is there a related reason the cold tap turning resistance would change when the hot tap was replaced?