I bought a pair of used HP80s last year, knowing they would require hydro this year (got a good deal). I was pleasantly surprised that they came O2 cleaned. I've kept them filled with 32% nitrox (banked). I wanted to keep them O2 clean as some places I might be diving regionally don't have banked nitrox available and I wanted to be able to get partial pressure fills without being reduced to diving a rental AL80 if I wanted nitrox.
I know what my LDS does, I'm just curious if it's standard for O2 cleaning to be required annually?
I know what my LDS does, I'm just curious if it's standard for O2 cleaning to be required annually?