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To: techdiver@opal.com
Subject: valves at bottom of cylinders (was: Re: regulator hoses)
From: ANTHONY APPLEYARD <A.APPLEYARD@fs*.mt*.um*.ac*.uk*>
Date: Thu, 24 Nov 1994 09:02:00 GMT
  On Wed, 23 Nov 1994, Richard Wackerbarth wrote:
  > ... Has anyone tried wearing back mounts "upside down" with the valves
near the buttocks ...? You could reach that area with greater ease. It would
require longer hoses ...

  [and others wrote about difficulties in reaching values placed behind the
shoulders.]

  Sten Meyer <m87stme@mt*.ch*.se*> replied on Wed 23 Nov 1994 17:49:31
+0100 (MET):-
  > This is the way tanks for fire fighters are worn. The Interspiro (a.k.a.
AGA) tanks are made this way. ... [and the regulator fastens onto the bottom
of the set, needing long hoses]

  The long hoses would catch on things and cause drag. Also, a dropped
mouthpiece might soon get very far from the diver's hands and arms and hard to
recover quickly. The best arrangement would be like in a 1960's English
aqualung called Normalair (made in Yeovil) that came with a single-hose
regulator in a fullface mask: it had the on/off valves at the bottom end, and
from them a metal high-pressure tube ran up between the cylinders to a
regulator connection in the usual place behind the shoulders.

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