Ok, how do i actually service a reg. There is enough mention in the forums on why its worth doing it yourself, but little to tell us how to actually do it. I have more than once opened up the second stages to clear out sand, but what are the steps to an actual service, and what should be replaced. Sure i know this varies from reg to reg, but there must be some principles to this. If it helps i have an aqualung titan LX.