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John Grogan sendte noget til mig den 18:30 29-04-99 som indeholdt pr=E6cis= .=20 .. . >Has anyone got experiance of auto inflate delayed smbs? I believe someone >makes a pyramid shape one which provides good viz in choppy water and is >particularly suited to deco > >Any info? Your now going to tell me its not dir? ------------------------------------------------------------- - Hi, Vinnie, I thought you'd left? :-) _I_ use a auto inflate DSMB for the following reasons: =95 I do not have to purge a second stage with the mouthpiece facing= upwards,=20 something that can easily make the reg freeze in our waters (0-15 degrees=20 C): this is the primary reason. =95 I have an _extra_ unobtrusive means of getting to the surface. =95 It's easier to inflate the DSMB if I were to have a buddy on the long=20 hose =95 It's convenient to fill even in shallow water. Backdrafts: =95 It could auto inflate but I've never heard of this happening (I think= the=20 possibility is remote) =95 It's a bit more bulky (I carry mine on the back crotch strap D-ring) =95 If the cylinder fails, it's useless (I carry a _small_ saussage bungied= =20 to my backplate on its left side: I can easily reach it but it's totally=20 unobtrusive: theoretically I don't need this as my buddy has the bachup but= =20 it's so small and out of the way I don't mind) I use the JD AutoMark DSMB as it's much taller and hence more visible and=20 less subject to chopping wave action. I see Halcyon makes one you plug you inflator into which would prevent the= =20 freeze-up, but from what I can see it can be a bit tricky not to get stuck= =20 when inflating it. ------------------------------------------------- 1. They're not DIR - Why? 2. If you forget to fill the inflate bottle, they're useless - you can't do a manual inflate. Also, as just about everyone had DIN and the bottle was A-clamp, there were problems filling it. - Use an adaptor. 3. They often unravel during a dive - or more particularly when you jump in and sometimes you just don't realise that it's 'flapping in the breeze' behind you - Mine doesn't: very strong velcro fastening. 4. It once inflated at 30m on a dive. Thankfully, I was inside a wreck at the time and I just got pinned to the ceiling. - Never happend with my make. My advice is to get a self-sealing buoy - like the AP Valves one. If you keep the tension on it on ascent, it will stand clear in the water (up to=20 1m clear) and be more visable than a pyramidal one. Certainly from my experiences on boats, these are the easiest ones to spot. - Mine stands at least 1 metre tall. Hilsen (Rgds.), =09 Peter Fjelsten -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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