[PSUBS-MAILIST] Commercial Grade O2 vs. Medical

[hank pronk via Personal_Submersibles]

 Steve,Here in Canada we can not keep our original tank, it is swapped out.  I fill  from a 122 cu ft tank into my small aluminum medical tanks.  I think Sean's suggestion of a charcoal filter on the scrubber is a good idea to maybe pick up a nasty.Hank
    On Wednesday, January 3, 2018, 11:10:41 AM MST, Steve McQueen via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 I tried to search the archives but it wasn't very friendly.  Sorry to again ask about something I know has probably been discussed.

I wanted to double ck. my O2 strategy.  After some investigation it seems I will buy a new steel high pressure oxygen tank for external mounting. My plan is to have it refilled with "commercial grade" O2 vs. medical grade 02.  As long as I keep my "personal" tank and not allow the filler to swap tanks I should create a "chain of custody" that will help me feel good about not having contamination.

I am wondering how others are managing.

Thanks,
Steve
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