Soaking fuel pump check valves?

[Grumpy Bear]

I'm cleaning and replacing the gaskets on the fuel pump for my 1975 Merc 50 hp. Should I also clean the check valves? They have that diaphragm in them, so I don't know whether including them in the soak would be a good idea or not.

Thanks!

 

[Grumpy Bear]

Anyone?