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Has anyone tried making a DIY interface cable / software for an IST Proline Nitrox computer to download to a desktop computer? Failing this, I have been told that the IST computer is a clone or repackaged version of another computer. Does any one know which computer this is, so that I could...

One of my photos from the weekend- Cat and Spectre surfacing at the Scuba Park. Matt

Yes to both. I hadn't thought about the gas composition. I'm strictly a recreational diver. By "this sort of diving" I assume you mean tech diving? I was thinking that such a "rule" would be aimed at less experienced recreational divers. Like the rules on maximum depth for dives. The...

The only problem I've been able to think of is freezing up a reg from the high volume of air flowing. Even that should be avoidable if you have the time to blow out short bursts of air, then let your regs warm up again. Matt

To rephrase what Genesis and others pointed out earlier... A given volume of air at standard temperature and pressure (1 atm, room temperature), say 150 cu ft, always has the same mass (weight). If you have a tank or tanks giving you 150 cu ft of air at STP, your change is bouyancy between...

I'd love to have a "wreck" to dive around Toronto. However, there is one huge snag. The only sheltered water around Toronto is Toronto Harbour. Diving is (or at least was) severly restricted in the Harbour. IIIRC you had to get permission from the Habourmaster (Federal) for a particular location...

Thanks Budgy & gfisher. I'll see if I can try the mask out in open water before I buy then. Matt

I've been looking at the CrystalVu at my LDS since the end of last dive season. Has anyone used one enough to let me know if the field of view is as much improved underwater as it seems to be on the surface? I'd be comparing it to a three window mask with framing between the front and side...

The (insert name here) Lake Monster should be slower in the cold water.

Yes. I know of two large mail order camping stores that carry it in Canada. I would guess that Campmor, REI, Cabella's would carry them in the US. It's actually a bulb / reflector unit. My Dad and I both carry Super Sabre lights as backup lights (or for additional light in crevasses on daylight...

I built a float out of PVC pipes & fittings. The float was 4" diameter pipe with end caps glued on. I butted some 1" screw fittings onto the top and bottom of the float. A section of 1" tube with the flag mounted on it screwed into the top. A second section of 1" tube worked as a "keel". There...

Sounds interesting. What is the thickness of the blade? (side to side, not cutting edge to top, of course). Is there any possibility of posting a photo of the result? My preffered dive knife is a Gerber River Shorty. It's nice and compact, has a decent sized grip, and the serrated edge goes...

I've also seen, (but not experienced) reg freezing in water in the 39-43°F range. It helps to know roughly what the temperature involved was. Thanks. Matt

With the description of Snuggle's incident in Lake St. Clair, I wondered if you ran into a partial reg freeze. On Sunday cat and I were diving in Lake Superior, (water temperatures between 37°F and 35°F / 2-3°C). We surfaced to reorient ourselves, and my reg started to freeze on the way up. I'd...