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Having gear in O2 service is important, ie the right materials, and a system needs to be clean.
The big question is what constitutes 'dirty' and needing a clean.
I get things cleaned when they go for a test but don't bother with the intervening 'clean' because I don't use places that do dirty fills.
I don't believe this 12 or 18 month lark but if I'm asking somebody to put high pressure O2 into my cylinder I have to accept what ever conditions they wish to apply. They have not seen my filters or my compressors so they are allowed to assume 'worst case'.
The big question is what constitutes 'dirty' and needing a clean.
I get things cleaned when they go for a test but don't bother with the intervening 'clean' because I don't use places that do dirty fills.
I don't believe this 12 or 18 month lark but if I'm asking somebody to put high pressure O2 into my cylinder I have to accept what ever conditions they wish to apply. They have not seen my filters or my compressors so they are allowed to assume 'worst case'.