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Paul, no matter what reg I am using, my lenghts are 7 feet, 24 inches, 24 inches and 22 inches for the hp hose. JJ uses a shorter HP hose, like 20, and I think is using Scuba Pro back regs rigged on the end of the swivel. Sometimes we both use US Divers back regs. Even when I use Scuba Pro regs, I rig them off of the side of the reg ( not the end) and still use the same length as for the APEKS or other non swivel reg. Personally, I use the APEKS regs both first and second my back ( non air balanced for the backup) other than with the rebreather where I use USD, but use the Scuba Pro for all safeties and most stages. You can leave a Scuba Pro in the water for months and it works like new, but my personal anal retentiveness does not allow me to have swivels on my back, thin DINS, protruding regs, unadjustable regs ( I run very low pressures on everything) or regs that crack too easily to breathe. The reason I leaeve the 24 inches is so that IF it were to become necessary to share the short hose, I have enough hose to do it. I also do not want the thing pulling at my mouth if I have to use it. I want to be able to turn my head fully to the left. If you run the hose from the reg downward,( through a strain relief) and then across, there is some "extra hose" back there that can extend it when you need it. As for elbos, swivels or anything else - do not use them - they are unnecessary and risky, and you can not get too cute on short hosing - you need to look at the real drag issues in the water while moving vs funcionality, not what sounds good on the surface. I give myself plenty of room on everything, and you need to have hose lenght that do not "hose" you if you have to change a reg at the last minute. You need reasonably standard stuff in this regard ( my fist lesson from Parker Turner), and it is generally available now. Paul Harris wrote: > > Another thing for the FAQ, but I need one so can't wait :-) > > What is the correct length for the backup reg hose. > On my Cave I with JJ he said my 'Normal' length hose was > 'marginal'. :-) > It is now time to replace it. > The is a standtard one an inch or so shorter at 2 ft., but > this still hangs over my > right shoulder. > > I can get an 18" one, but I think that this might be a bit > tight when looking > fully left. This is mainly due to the way the hose comes out > of the reg. > > I have seen 120 degree adaptors - not swivels -that may > alleviate the problem, but this adds > an o-ring. > > There is of course no problem when looging right, or behind > me by looking down my body. > > The hose George has on the DIR II tape seems to be about 18" as far > as I can tell i.e. it does not seem to reach the base of the cylinders. > > r > Paul > > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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