I am sooo new to all this but was using my dad's Oceanic regulator this weekend and had a slight problem. I've used it in the past without incident and love it (I haven't bought any of my own gear yet) Anyway, it was leaking from the low pressure inflator valve and the instructor told me it was the shradder (sp?) valve that was corroded. What do we do about that? This is probably a really stupid question but I'm so new and don't have a clue.