I use
Apeks and in the examples below you'll see DS4 and DST first stages with Tx50
seconds.
Fully rigged deco bottle
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Here we have a DS4 first stage with a Tx50 second stage rigged on an 40 cuft
deco bottle. Notice that the 40" hose is routed to the left of the
handle. That makes it easy to deploy and stow the reg on the bottle.
The 21 on the side is the maximum depth (MOD) for the bottle, 21 meter. So
there is probably 50% nitrox or 50/25 trimix in there. There is also another 21
on the other side of the bottle so you can see the depth no matter how you hold
the bottle.
As you can see I also have the second stage placed high. If you carry many
bottles it's usually better to have it lower on the bottle since it has a
tendency to be quite busy around your left d-ring
otherwise. |
DS4 first stage
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If we look closer at the reg we can see how the SPG is bent back on a
short HP hose. It's held in place with some cave line. On a DS4 it is
best to put the SPG on the left so it is protected by the valve and the
first stage.
You can also get a glimpse of the analysis tape on the right side.
That is where you want to put it so you can view under water if you like to
double check. The large MOD is what we use as our primary identification of the
bottle. |
DST first stage
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This is a picture of a DST first stage an a small aluminum 30 bottle (perfect
for oxygen in the ocean). Here we have to put the SPG on the right
because it is a swivel reg. Anyway it is still protected since this first stage
is larger than the DS4.
With the swivel first stage you should use a regular 36" octopus length
hose. You don't have to of course but with a 40" hose you don't need the
swivel and could have used a DS4. The DS4 first stage is by the way what I
recommend. |
Pressure gauges
Normally on our doubles we use heavy duty brass gauges with mineral glass. On
stages and deco bottles your looking for something small and light instead. I
have used Suunto SM26 without problems but I know Scubapro makes a small one
that is good as well as Agir and others.
Summary
This how we configure our regs on the stages. If you use another first stage
you have to be creative. Try to run the hose on the left side though.
Have fun!
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