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That's because the best trolls are really sock puppets. :biggrimja

I used to have a Scubapro purge style mask where my nostrils pushed down against the purge valve just hard enough that I could do a no-hands equalization. Had to kind of crinkle up my nose to get the nostrils off the purge valve enough to blow air into the mask to purge or equalize the mask...

Maybe they're showing support for their favorite team of Kiwis?

1. Power inflator button sticks, causing runaway ascent. Cure: maintain it; if it feels "sticky" use oral inflation; know how to respond (dump air, remove inflator hose). 2. Pull dump breaks or hose falls off, making it so the BC dumps all air. Cure: frequent inspection. If you remove...

Most people need to remove about 6 pounds when going from salt to fresh water. The buoyancy of a 3mm wetsuit is pretty close to 6 pounds (obviously varies with your size and the exact suit), so you will probably end up just about the same 4 pounds after a few dives. If it is a new suit, you...

Don't forget that when you breath in you become more buoyant, and vice versa. It's normal to move up and down a bit as you breath in and out. When you are vertical, the up and down movement with your breathing is exaggerated sicne you don't have as much resistance to up and down movement as...

The snippet above agrees with the comments by an instructor in Cozumel. He said that for him, both a wing type BC and BP/wings were very stable in horizontal position, but had a tendency to roll him back to horizontal if you tried to take another orientation. He uses BP/wings for cave diving...

Do a search for other relevant patents before you go too far. http://www.uspto.gov/ Even if the item isn't patentable,there is a possibility that you can make the design distinctive enough that you can trademark the design as something that distinguishes you as the source of the item.

Cause and effect is a good question. My personal guess is that the most significant factor is that many of the divers haven't been diving recently. Their "first day of diving", whether it is the day or arrival, the next day, or even the day after that is when they are most likely to have...

So who DO you recommend for a new diver that wants to get certified?

Like the two divers in the lower left of http://www.gue.com/classroom/tech.shtml

Excuse me for this attempted hijacking of the thread, but Rich's comment intrigues me. Your comment is exactly what I was told by 3 different people at 3 different stores that sell both BCDs and Halcyon BP/wings. All 3 dove BP for doubles and jacket for singles. It's strange how what is...

A typical deco dive is not necessarily, and probably isn't an exceptional exposure. Exceptional exposure is a dive "below the black line" of the USN Standard Air Tables. 80', 40 minutes is no deco. 80' 40-150 minutes is a deco dive for which the NOAA time to fly table is valid. 80'...

Hopefully the shears are all corrosion resistant stainless, but the rivet that hold together the blades will rust a bit on most shears. A dab of silicone grease or a bit of spray will help avoid this. If you are hunting for teeth, how about a small handheld garden rake or small handheld 3...

Maybe he's trimmed to be horizontal and he had to hold onto the wreck to get vertical. ;) I'm sure that I could find lots of things to nitpick at in any agency's publicity stuff.

ScubaDu has lots of new divers in its clientele and takes them drift diving everyday. Drift diving in this context simply means that the boat isn't anchored or moored, and comes over to pick you up wherever you surface. ScubaDu run special trips to the more advanced sites (such as Barracuda...

Last time I checked, GUE doesn't offer OW classes. Which agency do you recommend for initial training?

Buy the one that fits better and keeps the tank stable underwater. The Pro QDs have been attractively priced as dealers clear out their stock of the velcro pocket model before stocking the model with "sure-lok" pockets.

I checked it out a couple years ago, but couldn't dive it because someone was still there from an overnight stay. It is in a scummy looking lagoon (oops, I mean mangrove habitat) about a 1/4 mile south of the bay-to-ocean cut in Key Largo.

It also hurts you when it comes off inside your mask and irritates your eyes. Just put it on well before diving and it will have soaked in before you hit the water. Another alternative is to just skip the sunscreen and use a hat and a coverup such as a diveskin.