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Jan, I'm sure I won't be the first to suggest this, but I dive the Poseidons in very cold water and have had one freeze up that happened BETWEEN dives in the colder-than-freezing air. Never in the water. However, that one time was without the environmental caps. Poseidon sells a rubber cap that goes over the end of the first stage with the openings that expose the diaphram to ambient water. Put isopropyl alcohol in the cap and then there is no part of the regulator innards exposed to water. It works very well. I've NEVER had a freeze up with the caps in place (and I sometimes dive in sub-freezing fresh water - yes, it happens in rivers). I think they sell for about $15 and are easy to install yourself. Jan Honinckx wrote: > > I have a farily new Poseidon and I am expreiencing the following problem. > We dive regularly in quarries. As a matter of fact our club sort of has a > quarie nearly to call our own. > The water in that area is very rich in Chalk (a lot of Ca++ ions in it). > I purchased the Poseidon regulator 7 month ago so it was not due for > service yet > (if you send it to a shop my experience is the only thing they do is > charge you anyway). > > During last winter cold (as sometimes there was ice on the quarry) the > regulator froze twice on me (once when we were under the ice). > Being experienced myself and having experienced buddies with me this was > not a issue. > > After a month (and some diving in the Red Sea without problems) when the > water was not so cold any more (roughly 4 degrees Celcius at the surface) > I decided to dive again with the Poseidon. > The devastating result was that the darn thing froze again. I decided to > have a look at it myself. > > Inside the regulator I noticed a rather thick layer of Calcium had > build-up inside the first stage. > After removing the Ca with a tooth-pick the thing stopped freezing on me. > > Does anybody have any similar experience with another Poseidon ? > Does anybody have any similar experience with another regulator ? > > Who knows how to avoid this (I have put vaseline inside now)? > Who knows how to avoid water from coming (leaking) in the second stage ? > > Any suggestions???????? > > Regards > > Jan Honinckx > target@un*.be* -- Dave Mabry dmabry@mi*.co* Great Lakes Maritime Institute Underwater Research Team NACD NSS-CDS #42872 -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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