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My wife used a Perdix and I had a Petrel. The Petrel battery compartment flooded so the computer was toast. Shearwater offered me a deal on a Peregrine even though they were under no obligation to do so. I liked the idea of a rechargeable internal battery, so took them up on the offer. I...

Because the infernal engine gets me where I want to go faster, doesn't require rub downs or currying and carrys a bigger payload....all of which makes it a more attractive transportation mechanism. The new scuba tank does nothing for me that the old one didn't and possibly introduces...

I can't find the reference to 10 divers, but I am a bit sight impaired.

So why would I want something that costs money, introduces another failure point (or at least one) and requires that I change the way I dive when it took me over 200 dives to get my buoyancy in reasonable shape with the gear I use now.

I just had a quick look at the manual for your BC. It appears that you can dump air using the i3 "system" or manually using the shoulder valve. Have you tried both?

My wife and I were diving in Cozumel...l can't recall the site. We were at about 80 feet. I came past a large rock on my right and entered a sandy sloping area. Before I could react I was caught by a current running upwards and to the left. I tried to swim back towards my wife and the other...

It really depends on your tolerance for cold. Water temps here in Cabo Pulmo were 28 C at the beginning of last week, but are now down to 26 C. When we dove Cabo Pulmo as well as Socorro three years ago in March, water temps were similar in both places. I wore a 3 mil shorty this past week and...

It's hard to say exactly but what you've describing is usually caused by buoyancy changes.....breathing deeply?.....possibly you're moving a bit vertically when you kick? You do have another "air pocket" with a drysuit which is subject to depth changes. You may have been shallower than you...

Why don't you just refer the original question to Shearwater. The Peregrine has an internal rechargeable battery. Not sure how much additional power AI needs but it is a potential issue if it's significant.

You've already moved it, so unless you documented the site you found it at, the context is gone. Cleaning it before consulting with a museum or professional archaeologist was also a mistake...who knows what you removed that could be helpful in the analysis. Don't know if it's the type of...

I don't really want to track an animal. On the other hand I don't see any harm in other people doing that...so I didn't vote. If the organization wants my money they'll have to be a little bit more specific as to what it's used for and how much they donate from each sale.

I know very little about Asperger's Syndrome, but noted that your son gets overwhelmed quickly with too much stimuli. I'm wondering how he would react to a mask flood or an out of air situation, as two examples of what can happen when scuba diving. Can he learn to deal with these issues like...

I'd be interested in how the water became supersaturated with oxygen. Any ideas?

My son had a similar problem about 5 or 6 years ago. I did a lot of research on the internet and actually got some information on "chronic daily headache". There was one specialist here in Vancouver who saw people with the condition but he was booked up at least a year in advance, so my son...

If you're in Canada you'll have to pay GST/PST or HST on the declared amount. If it comes via USPost/CanadaPost I believe the service charge is $10-15...other carriers are more, but you can look it up on their website(s). There is no duty.

Surge in shallow water, where I can see the bottom, will make me nauseous. Fortunately I've never vomited.

These people exist in the Philippines too. They are not usually Americans, they are definitely not Filipinos and they don't arrive by cruise ship. If you are selective in choosing your dive operation they won't be on your boat, but you may still run into them underwater.....or more likely...

I consider Cozumel to be one of the best places to go for divers or other tourists who are the least bit nervous about traveling. If you won't go there because of the taxi union where will you go?

Viz was probably quite low at this time of year....at least in the upper layers.

The OP didn't, but another poster asked for hardware recommendations and did mention video editing.