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I hope you guys aren't actually DIVING with the SPG screwed directly onto the first stage. I have a 1st stage I use for gas analysis and it has the SPG screwed directly into it...I assume most people at this level knew this was possible with most SPG's and 1st stages. Too actually get in the water with such a setup is looking for trouble - one good whack on the SPG and you stand the possibility of losing the gauge and a good chunk of gas. If you want to screw an SPG into the 1st stage get one of those button types that does not rigidly stick 4 inches out from the reg. The other choices are a)use a hose on the SPG or b)dial 1-800-PLA-GOLF. - Tony ______________________________ Reply Separator _________________________________ Subject: SPG on Deco Bottles Author: paul1@ml*.em*.co*.za* at EXTERNAL Date: 9/27/96 11:11 AM I've been waiting for someone to suggest screwing the SPG into the first stage for a couple of days (thanks troppo). Most decent SPGs in fact have space for an O ring and can be screwed straight into the first stage as the hose would have been. The problem is that Murphy will dictate that the SPG faces the wrong direction when screwed in (the PTFE tape might be the answer to that one - I'll try that at some stage). Also the concept works better with some designs of first stages, on my Poseidons the SPG is on the opposite side to the 2nd stage hose which I find difficult to read underwater (thus I've gone back to the hose route on my Poseidons). Turret first stages appear to suit the method better.
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