My 571 key locks have been getting way to hard to open despite my attempts to clean and lubricate them. I replaced them with 3 digit combination locks so I will have one less key to carry around. I replaced all three storage compartment locks but it didn't fit nicely on the outside shower door... So I may need that 571 key afterall.
I also added the dust covers just to keep them cleaner and dryer.
One question - should I have put any sealant behind the locks to keep water out of the door? There wasn't anything on there when I took the old ones off.