TekTips

Items 1-10 of 168

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  1. Long Hose Regulator Configuration for Single Tank Diving 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 ...
  2. Inspect Your Regulator Mouthpiece 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, ...
  3. Bailout/Deco Regulators 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 ...
  4. Choosing Stage/Deco Regulators 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 ...
  5. Do You Sidemount Up or Down? 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 ...
  6. Piston vs Diaphragm... Does it really matter? 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 ...
  7. Are Rebreathers Safe? 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 ...
  8. Oxygen Sensor Life in Rebreathers 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. ...
  9. Inside Submersible Pressure Gauges 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 ...
  10. Upstream vs Downstream 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 ...
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