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Andy

I use the Advanced Diving Product's Delayed Surface Marker Buoy.  This   
has an inflation cylinder (0.2 or 0.4 litres can't remember) that can be   
recharged from your main cylinder (A clamp fitting).  The bag is reddish   
and pear shaped.  The SMB has the disadvantage of being slightly bulky   
but is extremely quick and safe to operate.  This price is about 85 UK   
Pounds.  ADP also sell an emergency SMB (small sausage shape in red or   
green) that is inflated with a small soda syphon type cartridge.  We   
carry these in case to signal the surface in the case of an emergency or   
if the primary SMB fails.  Cost UKP 40.  I can get you the name and   
address of the company if this is needed.

The other delayed SMB that I like is sold by AP Valves.  This is a red   
sausage filled by air gun or regulator.  Stands up well and has an   
excellent self sealing base - so much so that a over pressure/dump valve   
is fitted.  Cost about UKP 30.

AP Valves
Parker Diving Ltd
Water-Ma-Trout Industrial Estate
Helston
Cornwall
TR13 0LW
UK

Tel +44 1326 561040
Fax +44 1326 573605

Dave Shimell
shimell@se*.co*

 ----------
From:  owner-techdiver[SMTP:owner-techdiver@terra.net]
Sent:  16 April 1996 13:46
To:  techdiver
Subject:  inflatable surface marker buoy

     I am looking for a surface marker buoy that can be deployed by a   
diver
     at depth, like a liftbag, will stand up on the surface like a safety   

     sausage, and will stay inflated.  I want to use it in conjunction   
with
     an upline.
       

     Billy Deans showed me a surface marker that looked like a heavy duty   

     safety sausage.  It had a flapper valve at the base that allowed a
     diver to inflate it at depth with a puff from a regulator, and then
     remained inflated after it'd deployed on an upline.  It was bright   
red
     and more easily spotted from a chase boat than a liftbag.
       

     Does anyone know where these things are sold? Billy mentioned that   
his
     was of European manufacture.  (I'd ask him, but the guy is as hard   
to
     catch as smoke).
       

     Andy Cohen

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