The traditionally configured sport diver uses an 'octopus' regulator
setup. Over time, many experienced divers have come to believe this
configuration has significant problems even for single tank diving. Key
issues are that the backup second stage, on a {36 in | 91 cm} or
perhaps { 40 ...
When is the last time you gave any thought to your regulator mouthpiece? Our service technicians tell us one of the most commonly damaged parts they discover during routine maintenance on a regulator second stage is the mouthpiece itself. Many divers bite down much too hard on the mouthpiece, ...
Good work-of-breathing on bailout/deco regulators is very important to ensure proper gas exchange. A switch to a bailout bottle, especially if due to hypercapnia, is always a demanding situation. Low quality, improperly maintained or incorrectly tuned regulators can perform poorly regardless ...
In many stage or decompression dives, you will be spending as much or more time on the stage and deco regulators than on the back gas primary. You are every bit as dependent on these regulators as your primary, because if they fail the dive quickly becomes unpleasant as you switch to your ...
By default, the SPGs in our sidemount regulator packages are not
mounted on the first stage HP ports. That is because there does not seem
to be a consensus among experienced sidemount divers on how the
cylinder valves should be oriented. Some sidemount divers configure the
stage straps ...
At the risk of annoying those who do have a preference for a specific
type of first stage design, the simple answer for most divers is NO
the design type of the first stage does not matter. Piston type
first stages are simpler designs with a lower parts count and thus
generally ...
At Rebreather Forum 3 held in 2012, statistics were presented which suggest closed-circuit rebreather diving is five to ten times higher risk than open circuit scuba. Some of the statistical increase may be due to rebreathers enabling divers to attempt extreme dive profiles which are themselves ...
When any new oxygen sensor is removed from the sealed package, it can
take anywhere from a few minutes to several hours for it to acclimate
and the millivolt output to stabilize. We recommend waiting as long as practical before calibrating your rebreather with a freshly opened sensor. ...
As divers, we often make important decisions based on the cylinder pressures indicated by these very simple mechanical devices. We had our SPG manufacturer make us a 'custom' gauge without a dial, so you can see how a quality SPG works. The SPG has an all brass chrome plated housing with a ...
The demand valves found in scuba second stages can be either upstream
or downstream design. In a downstream valve, the moving part of the
valve opens in the same direction as the flow of gas and is kept closed
by a spring. In an upstream valve, the moving part works against the ...
