02-28-2023, 03:48 PM
Fred_Also wrote:
I have used one of these tools to smooth the seat in the faucet. YMMV
Fred
Search Amazon "Seater tool"
That is for smoothing the seat in older style, non-cartridge valves. Those have the seat as part of the valve body, and it can be smoothed. Valves with cartridges use a replaceable seat that has an o-ring surface for the bottom of the cartridge to seal against.