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The 'prime' is not oil filled. It has user replaceable 2450 button battery. Yes, there was nothing magical about the Uwatec battery. What was magic was the 'prime' and 'tec' models sucking down batteries, especially after the 1st replacement. Battery-Eating Uwatec Computers: Undercurrent...

I tried Purda Vista and Force-e. They have bubblemakers in the pool only. :( I'm guessing that might be the common answer inside the USA.

Hi all, At resorts outside the USA, kids bubblemakers sometimes happens in protected shallow waters instead of a pool. It seems that BHB might be a good location for such. Does anyone know of a shop/instructor that will do bubblemakers at BHB? Thanks, Jeff

Is that a man-bun? You ever wonder what a wolf thinks when it sees its distant relative, the pug? Same thing your grandpa thinks when he sees your man-bun!

Wet suit thickness is a personal preference. I've been diving without a wetsuit, while the DM was in 5mm + hood. It depends on your body type and personal tolerance. Have you logged the water temperature when diving with the 7mm suit? Have you been diving with other thicknesses, and logged...

How long? Days? Weeks? Months?

I have never seen this mask before, and I am not a medical expert. In fact, I've never seen anyone use such a mask or anything similar. I did spend some time on their web page: Swimming Ear Protection Diving Masks ProEar 2000. Their claims of easing equalization are spurious and anecdotal...

I say go to Key Largo. Book a diving package through Rainbow Reef and stay at the Courtyard by Marriott. You bring your gear, they handle the tanks. Water temp is 84deg right now, so you won't even need a wetsuit!!

Don't limit yourself to a LOB! I think that by the nature of the diving in Bonaire (shore diving, mostly) finding an insta-buddy is much more difficult. Heading off in a vehicle to find a spot and dive from the shore is not a 'group' activity. Bonaire has maybe skewed your perspective of what...

If you are desperate for a shore dive on your arrival day, go to Blue Heron Bridge near West Palm Beach for the 1:12pm high tide shore dive, then drive to Key Largo. Blue Heron Bridge is incredible, and much better than shore diving in Key Largo. Or is BHB still low-vis from the bad weather...

Scuba Club Cozumel shore dive is fine, and a fun place to explore, especially at night. But don't expect anything close to what you'll see from a boat in Cozumel.

What's the reason for 100-200psi? Are you worried sucking it dry would be stressful, or is there some other reason to maintain some pressure in the tank. I'm only asking because that's 2.5-5cf of air (or am I wrong). That's another 30 feet or so of ascent, isn't it? Cheers!

Yea, I'm not seeing this. You are suggesting they did gas planning for a 'rock bottom' profile. My calculations for that profile, using 90' depth and 40 psi/min SAC for both divers (under stress in an emergency) comes out at a rock bottom of 1415psi. That's the minimum pressure required to...

@Normal_life_is_just_SI, sorry if I sound cold or callous. I don't really mean it that way. If we were in person, I would express these thoughts through a tone of voice and body language as sincere curiosity, not a criticism. This is a slightly different perspective than most of the other...

Thanks for constantly making improvements! I'm starting by using your new personal buoyancy feature (which is much improved over the last version) to estimate my lead needs. But, I plan to visit the pool and collect some data and then reverse calculate my personal buoyancy. Please critique my...

@DrMack Why don't you use a larger tank? Many dive operations have 100CF available.

I believe the Aladin Prime had a significant battery problem. My battery life was fine on the original battery. Each time I replaced it (with a high quality cell) the battery life dropped drastically. By the third battery, it wouldn't last a week! I heard this was a 'class problem' but I...

Please keep in mind that everyone has a different definition of "decent quality". Generally, for most non-artistic applications, 300dpi is fine. An iPhone X or GoProHero 7 Black is approx 4000px by 3000px, so you can print a 10"x13" photo of very good quality. A GoPro from 2018 can print a...

I don't know how some people could dream of using a phone as a camera while diving. It may work fine, but I wouldn't risk it. Maybe a spare phone (last year's leftover). I've seen and heard of enough camera housings that flood that I won't risk my phone. Yes, it is partly the cost of the...

I call BS. Physics and anatomy say otherwise. It might be so easy that he does it unconsciously, but he still does it. Don't worry. Once you get healthy it will be much easier. The more you do it, the more it will become easy and automatic. The more you practice buoyancy, the less you'll...