Well Ive been outta diving a few years and it is no time to get all my gear serviced. Ive got 6 tanks 1 steele 72 initial hydro was 1968 but its been inspected 4 times since then. I have 5 aluminum 80`s only one is the 6351 alloy gonna have it checked but may fail anyway. Need to get regulators and BC serviced as well then i plan on getting wet few times this year. My wife wants to get certified as well so we may look into that as well.