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>I use a standard Sherwood piston 1st stage with a yoke. To this I run a >100' Hookah hose to a "T" If your first stage is good enough, you will be able to support two divers on the same hose, but: The flow of gas is a function of the intermediate pressure and the diameter of the hose. Let say you put the second stage at 10msw/30feet, you are dealing with 1bar more pressure then the surface, where you first stage still delivers the ambient pressure plus let's say 10bars, your actual intermediate pressure at the second stage is one bar less then it should be. Isn't it a good idea to tune your first stage intermediate presure one bar more? But again if you use the same regs and you ascend to a shallower stop, 3msw/9feet, then you will have a higher intermediate pressure. Usually I do nothing and it still work, but I would like some comments on that. Merry X-Mas Roberto <<<<<<<<<<<<<<<<<<<< <<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> < > < > < "Memento audere semper" > < > < > <<<<<<<<<<<<<<<<<<<< <<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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