The Diver Down flag brought up another question. I am not a certified diver, nor do I want to spend a lot of money to get certified. But I do want to clean my own boat and do underwater inspections. Snorkeling doesn't work for me and I want to say under longer.Can someone confirm this statements: To buy a small tank and gear, do I have to have a certification? To refill a small tank, do I have to have a certification?I am in California by the way.Thanks