Genesis GS2000

[rileymartin]

I need to buy a new regulator and was looking at the Genesis GS2000. In the manual it says not to use it with 'any gas or enriched oxygen mixture above 21% oxygen'.

Is that just some legal mumbo-jumbo or are there actual problems using the regulator with Nitrox? In my Nitrox course it says your regulator does not have to be specially certified or cleaned for Nitrox up to 40%. I plan on using my old Scubapro MK200/G200 with Nitrox.

Does anybody have any information on this?

Thanks.

 

[scubafanatic]

.....I thought ALL scuba gear manufacturers switched over to Nitrox compatable regs (at least up to 40% anyway) ...YEARS ago ! ....maybe try to contact the manufacturer and confirm ? ... is it a new 'old stock' reg ? .... ultimately you might be forced to do an immediate 'annual' on the reg to swap out the O-rings to nitrox-compatable ones, which might bump up the cost so much you'd no longer want to buy that reg anyway.

 

[redacted]

Here is a related thread. http://www.scubaboard.com/forums/sherwood-scuba/234352-sherwood-magnum-nitrox-ready.html

It is probably legal speak. But, if it were me, I'd respond with wallet speak and take my purchase elsewhere. Sherwood/Genesis seems to be the dinosaur on this issue.

 

[halocline]

I'm sure it's okay to use with nitrox, but I still would not buy that regulator. It's basically a flow-by unbalanced piston design with spring washers ala sherwood that counteract downstream pressure, so it's "sort of" balanced. That part is fine, the old sherwoods using the same set up have a long track record, but the genesis does this dumb thing with a special schrader valve in the ambient chamber for dry depth compensation. I think it's dumb because you're supposed to replace and test that valve every rebuild, and it takes a special tool that very few people have, and knowledge specific to that regulator.

The 2nd stage is also a standard unbalanced lever-type stage (like the R190) with an overly complicated breathing adjustment. It would have been much simpler and easier to work on if it were just a regular barrel-poppet 2nd stage like your G200.

Just my opinion....