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My wife has a very low SAC, around 10 liters/minute or less (I am around 13). Years ago, she conducted routinely recreational deco dives in air, down to 50m max and with deco stops (never deeper than 6m) using a single 15 liters steel tank (3000 liters when full). At the time, I was using a...

I fully understand the need to give tips for allowing these people to survive. My point is that it is wrong to assume that giving a larger tip one gets a risk reduction! Some activities are dangerous, and one should search for REAL risk reduction methods. The idea that tip money can provide real...

I understand your concern. It can become truly dangerous. My wife, who was acting as supervisor of the trip, once lost one snorkeler at Maldives. The search lasted a couple of hours, finally she managed to find him, thanks to the hawk eye of one member of her Maldivian staff... After that...

And use YOUR brains for understanding what is really optimal FOR YOU. I appreciate standardisation and team coherence, but each individual has some peculiarities, and one should be elastic enough for adapting to them.

Because you have got a DIN 300 bar kit on a 200 bar combo DIN/yoke valve. Scubapro also sells, for a few bucks (49), the DIN 200 bar kit, which has a shorter screw, entering completely in the valve instead of leaving two threads out. With the DIN 200 bar kit, your reg would end in the same...

There are many models: https://www.freedivershop.com/lobster-freediving-neck-weight?___store=it_en https://deepbluesub.com/prodotto/collare-apnea-best-divers/ https://www.tradeinn.com/diveinn/it/best-divers-peso-del-collo-regolabile/136415709/p...

I suggest n. 3. It is what most free divers use here in the Mediterranean, with a stretchy and low drag 5mm wetsuit and long and light freeding fins. Perfect buoyancy, perfect trim, no drag. The neck weight is not really around the neck, it is behind your head and along your shoulders.

16-17 liters with ditchable weights is ok for your case. Of course with proper setup of your weights. My one is 20 liters, I also use a 15 liters steel, down to 50m with wetsuit (5mm here in the Mediterranean). I never needed to fill it much more than half.. The nice thing of the BP+wing is...

My suggestion is always MK17+ two identical G260. No crap octopus. Simple, reliable, serviced everywhere for the next 30 years.

You are the captain of the boat. A captain has a number of obligations and responsibilities, which are the same also if passengers are not paying. Did not you learn about captain's responsibilities when you did follow the course for getting your captain's license? And did that course include a...

"extra effort"? DIN connections should not be highly torqued, the reg is locked in position by pressure. Once depressurised it should unscrew much easier than an A-joke clamp. if you get any resistance, the screw is damaged (ether in the reg or in the tank).

In reality, several of the remedies suggested in this thread do work, at some extent. Not the same for everyone, of course. For me, driving the boat myself is the primary remedy: I never vomited while I was the driver...

I do not know these other two, so I cannot compare.

I suggest you order from Europe through Ebay. There are no import duties in US for sport equipment. https://www.ebay.com/itm/303632610769 https://www.ebay.com/itm/303627380484

Make a one-week LOB. This will "prime" your labirinthic channels, making you much more resilient to sea sickness. Repeat twice per year for keeping them "primed".

I have a 3mm full wetsuit bought at Decathlon some years ago, and branded Triboard (now they sell a similar one branded Subea, which ibdtead is "for scuba"). The Tribord is designed for surfing et similia. I used it here in the Mediterranean during summer, down to 35m max. Albeit it compresses...

Just out of curiosity: what was the reason for having your ear duct rinsed with a siringe? In 65 years I never needed such treatment, nor I have heard of other divers needing it. Some people develop excessive wax in their ear ducts, but this is usually removed mechanically, not hydraulically...

I serviced them for years without any specific tools. for removong the HP seats, i used a plier designed for opening seeger rings. For unscrewing the body of the reg, I used a tool originally designed for adjusting the spring load of the shock absorber of my motorbike.

Lung expansion injuries is just one of a dozen of dangers encountered with underwater breathing systems. Albeit there is not a "safe depth" which zeroes any risk of lung overexpansion, when we started training my sons to breathing underwater using a small pony tank I and my wife analysed this...

The Airbuddy delivers air at 2 6 bar, it is written in the Q+A section of their web site. I did not find this info for the Nemo/Nomad. These systems do not use a standard balanced second stage regulator. They seem to employ another kind of regulator, which I never experienced. This makes hard to...