If your vis is expired - of course stickers have to be removed to check for pits - that's pretty straight forward. Clearly the limiting factor on tanks, valves, regulators is the PP fill method requires O2 cleaning if it's to be exposed to 100% oxygen during the low pressure filling portion of the partial pressure blending routine. Pre-blend does help but a suprising number of shops still freak out about the 'high level' of danger presented by this "mysterious" gas called oxygen. <lol>
A local shop in California went all out and purchased a low-pressure permeable membrane system. But here's the best part they absolutely state in their policy and back by their practice that they will fill anything to 40%. Their only stipulation is tanks must have current hydro and vis. No O2 cleaning required. Oh, yeah and you need a nitrox cert card too of course. Otherwise just like the shop mentioned at the outset of this thread they will tear every last sticker off your tank to inspect, and like any reputable outfit if your tank is toast they will condemn it.
Here's their website: Hollywood Divers
A local shop in California went all out and purchased a low-pressure permeable membrane system. But here's the best part they absolutely state in their policy and back by their practice that they will fill anything to 40%. Their only stipulation is tanks must have current hydro and vis. No O2 cleaning required. Oh, yeah and you need a nitrox cert card too of course. Otherwise just like the shop mentioned at the outset of this thread they will tear every last sticker off your tank to inspect, and like any reputable outfit if your tank is toast they will condemn it.
Here's their website: Hollywood Divers
