Mr Carcharodon
Contributor
BIGSAGE136:Equipment, especially your gas system needs certain lubrication that can dry out depending on conditions.
Really? The most common greases used in scubagear like Dow 7 or Cristolube appear to be high quality silicones or flourocarbons with low volitile contents. So what is there to dry out? Is this based on observation or a through the grapevine bit of knowledge? Remember original poster was asking about what needs service in equipment that has not been used much.