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I can't give you advice about camping but I can give you some advice on the diving. There is a water taxi you can take for $10 cash at the main (?) dock. There, you can drop off your equipment and park your car in the lot which is an 1/8 mile up the road. Put on all of your equipment on near the...

I have a Perdix (no air integration) and use it in rec mode. You can configure the display to show GF99 and SurfGF on the bottom row. I prefer rec mode as the safety stop is controlled automatically. I've used the OC tec mode and found I had to start and stop a timer manually when I began my...

Really?! You realize that besides myself there are a few other divers on this thread who signal only the first two numbers of gas remaining. In some cases that system depends on context. For example, my buddy signals 2 then 1. Does he mean 2100 psi or 210 psi? Which is it? Well, without grilling...

Perhaps, but the point is that the closed fist is LESS prone to being made sloppily than the "O" signal, and isn't clearer less confusing communication the goal?

And that's fine if you can keep all your fingers together! With some of my buddies it's either a sloppy zero or a sloppy "I'm OK are you OK?"

The principle involved in buoyancy is called Archimedes Principle and is captured in this equation: B = VD - W According to the equation the buoyant force B is the difference between the weight of the water displaced by the object (VD) that causes you to float, and the dry weight (W) of the...

I signal the same way: 1-5 is fingers vertical, 6-9 is fingers horizontal, just give the first two numbers. The only thing I do different is I close my fist and push it outward to designate zero. The problem with making an "O" using your fingers and thumb is it could be confused with the OK signal.

The difference in weight needed to go from fresh water to salt water can be calculated using the buoyancy equation: B = VD - W Where B = buoyancy force in lb (neutral buoyancy = 0 lb), V = volume in ft3, D = density of water in lb/ft3, W = weight in lb. Rearranging the equation to solve for...

True. But, you're making the assumption that all tech divers will be making tech dives all the time. The situation I was thinking about was the tech diver who dives a recreational dive from a boat who has not brought along the required alternate gases.

Yeah, it's ironic but not unreasonable for an operator to deny solo diving to a tech certified diver. One problem is that the tech diver may not have an auxiliary gas source and therefore shouldn't dive solo. For that case the operator is acting responsibly for denying the solo dive.

I didn't read all the posts in this thread so please forgive me if this has already been mentioned. With 100 dives you can now pursue solo diver if you have rescue. You can get this cert from either PADI or SSI. The skills you will learn are gas planning and how to dive and manage an alternate...

There hasn't been any scientific study done on bubble models that incorporate deep stops that I know of. The shift away from bubble models is partly due to the simpler dissolved gas model and the ease in modifying the model through GF's for personal use. Bruce Weinke who has since passed away...

If you are going to do only two dives for the day and you are not going to extend your bottom time nitrox probably isn't necessary. This is most common during DM group led dives. Where nitrox makes a big difference is when doing multiple dives a day (more than two) and especially when diving...

One danger of setting your dive computer for air when diving nitrox is exceeding the MOD. The MOD for air is 187 ft. The MOD for EAN 36 is 95 ft. Your DC will never give you a warning for exceeding the MOD of the gas you are actually using.

I've been nitrox certified for many years. In terms of the mechanics of putting together your equipment, the actual swimming underwater, and the feeling of diving nitrox (at least for me), there is no difference between nitrox and air. Definitely review the course materials especially MOD and...

Without seeing the 14 lbs of weights on your DUI harness my guess would be that while swimming horizontally those weights have shifted forward in their pockets so that they hang below your center line. This will make moving to the vertical position harder as you have to "pick up" those weights...

Actually the VPM bubble models were designed not to eliminate bubbles (see the bolded text in your post) but to keep those ever present bubbles from exceeding a critical size.

Well, that is the issue - ignored gear. I wish every diver had your dedication to testing their equipment. I routinely on every dive at the beginning of the dive switch to my alternate and breath at least 30 seconds from it. If it doesn't work correctly I abort the dive. You can't prevent a...

If you adopt the NACD meaning for the one handed thumbs up signal just remember it's a demand signal. It cannot be ignored by your buddy. Buddies should not ask for a followup explanation assuming one can be given. Explanations can wait for the surface. Usually, a diver has a problem that is not...

I agree with you that one handed signals to show gas remaining is better as with all other hand signals. What I and my buddy have used for gas remaining is to signal just the first two numbers. 2,550 psi becomes 2...5, 2,000 is 2...0, 900 is 9...0, 500 is 5...0, etc. From the context of the dive...