captain
Contributor
Nemrod:Thing about the DW Mistral is that it has only one O ring, one little push pin, one seat, one double fulcrum lever and that is it. So few pieces and no seals there is nothing hardly there to fail or break that would stop it from functioning. I got my Mistral as a gift in 1968 and it was already ten years old and had been dived a good bit. I dove it a bunch more. I put another set of hoses on it with my allowance and dove it another ten years. At no time in there do I recall do any sort of "annual" service. When I finally recovered it from the bottom of my dive chest to use for kayak diving it still worked and breathed fine save for needing new hoses. I cleaned it up, put new hoses and cage valves and away I went. It has been so totally trouble free that I am absolutely certain it alone is more reliable than a twin set of modern Apeks regulators or other plastic un-fantastics they pawn off as "tech" regulators. The tech community needs to insist on metal second stages and metal working parts and then they might have a start towards regulators that can function relaibly for oh, say, fifty years or so. When the one is so reliable, maybe, two are not needed?
N
The absolute height of reliability is the DW Mistral on a 1/2" pipe thread J valve on a steel 72. Only one critical O ring at the regulator to valve connection. That's how JYC lived to a ripe old age.