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>>I live in Egypt. In this country, there is around 300 dive clubs, 2 of them >>offering Trimix. Diver's Lodge and... ClubRed. Helium is about $.07 a liter. >>That's the price I sell it. I could hardly make it cheaper. So, if I wanted >>to be DIR it would cost me 2x$54 to go to 60m with my 2x80. Hugo - that's marginally cheaper than we pay in the UK (we pay about $0.75 a litre). However, that does not stop us doing it right. We also use bigger sets of doubles (twin 12L cylinders typically) AND we go high on the helium - our MAX END is 30m but we typically run a shallower one. Sure it works out expensive, but we take our safety seriously - that's just the price we pay. >>On the other hand, air singles are available under each stone around here. >>Billy, I'm 40, I have 2500 dives, maybe 800 of them around or below 60m, >>most of them on air, and I run the technical side of the operations here. >>Don't make me more stupid than I am. Double manifolds are incomparably more >>difficult to transport and have refilled compared to the singles you just >>rent on a boat. 100 tanks on the boat. No compressor. One dive and I would >>have to go to shore to refill. Is that your alternative? I then use my 15L >>tank w/H-valve for 1 dive, and then... independent singles. Doubles are no more difficult to transport than 2 singles and are not more difficult to fill - they take as long as 2 singles. Assuming that you're doing a second dive a lot shallower than the first, then get a single tank adaptor and dive your backplate with your 15L H valve tank. >>I could go through more examples. If I was DIR I would just not dive. So >>yes, I have a much better solution than DIR. A solution which allows me to >>dive everyday. So does what Billy has suggested. When I go away diving and know that mix will not be available, I do what Billy suggested - I use stage bottles with mix and use the backgas for emergencies or the last dive. It's always worked well for me and I can't honestly see why it won't work for you. It appears that you seem to think carrying tanks is too much hassle and would rather not do so. Best, John. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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