o2 clean

[EDITED to reflect excellent advice received in comments] Greetings, everybody. I got certified in 1995, but I never owned my own regs until early this year, when I purchased a used Apeks XTX50 2nd connected to a DST 1st stage, for cheap. I've learned a lot over the years by reading lots of...

So to start I had all of m tanks o2 cleaned when I got my nitrox certification because my LDS uses partial pressure blending. I recall him saying(and this could totally be me having a lapse in memory) that if I went anywhere that uses a continuous blend method that I would contaminate my...