Another thing to have with the keg systems is the Food Grade Silicone Grease, always lubricate all rubber seals with a small layer, including the disconnects. will greatly increase the life and effectiveness of your seals.
I suspect that I have some others older than 10 years.
I do need to do a clean up in the crawl space under the house.
It is a good cool and dark place for brew storage though.
I was doing some tidying up under the house and found a carton of a Special Ale I bottled in 11/03
Thats right November 2003!
So bunged a couple in the fridge yesterday and cracked one last night.
Wasn't sure of it at first sip, but after a few minutes it was beautiful.
Smooth and a light...