The ~button~ in a diverter valve

[Chefwong]

Is it good practice when the ~button~ / plunger in a diverter valve get's sticky - to remove it off the valve body and just add some sort of grease...

 

[Jadnashua]

Mineral deposits may need to be cleaned off. Silicon based plumber's grease helps keep a CLEAN one working well longer. But, some of them end up being pitted, and then they don't work well unless replaced.

 

[Sponsor]

 

[hj]

Usually, by the time it gets like that, it is worn to the point where it should be replaced. You have to remove it to "grease it" anyway.