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Some of the technical diving operators in Scapa Flow, Scotland. Protec Sardinia. In Tenerife: DivingCanarias in Radazul, La Morena Diving in Las Galletas, Los Gigantes Diving Centre in Los Gigantes, Atlantic Divers in Costa Del Silencio, etc Silfra in Iceland is officially NOT solo diveable...

Cave diving in crystal clear water of Cueva del Agua, near Cartagena, south-eastern Spain. Please check the "Making of" at the end;-) In Cueva del Agua, there is 3.6 kilometers of surveyed cave. For further detailed information, maps, history etc, please check cuevadelagua.net

Cave diving in crystal clear water of Cueva del Agua, near Cartagena, south-eastern Spain. Please check the "Making of" at the end;-) In Cueva del Agua, there is 3.6 kilometers of surveyed cave. For further detailed information, maps, history etc, please check cuevadelagua.net

I suggest that you purchase dedicated regulators for your ean50 and ean100 tanks. Especially, never use the ean100 regulator with anything else than pure oxygen. If you are planning to dive to the depths of your TEC50 course, "max 21% oxygen" will not be a problem. Plus, Poseidon have a...

No changes to GFs. Just different gases and profiles. Might be dependent on sfw version. Mine is 02.02.13.

I use the xDeep Tmx as a backup computer. My typical dives are mine dives to 28-58m depths for total durations of 80-100 minutes, most of them trimix. When compared to my slightly conservative Suunto HelO2, xdeep sometimes gives almost the same deco time, sometimes 10 minutes more, sometimes 10...

There actually is a neoprene diving hood like this. It is called an ice hood and supposed to be pulled on top of a regular hood. However, in warm waters, you could use it alone. I covers everything except a small hole for the regulator and a larger one for the mask. Products - Waterproof

I usually show my SDI Solo Diver card if a certification is requested. If for some reason this card is not accepted, next I'll show my red NACD Cave Diver card, or, IANTD Normoxic Trimix card. If none of these are recognized or honored, I carry with me a CMAS P3 card. However, if the operator...

If you are that concerned about getting in contact with water, you might want to consider a dry suit with a permanent hood...

I am voting for more color depth instead of higher resolution or better packing. Of course, 4:4:4 (at 8 bits) is better than 4:2:0 at 8 bits. But there is a much bigger difference with 14...16bit "RAW" color information per channel. The problem with 8 bit video in poorly lit ambient light...

I have about 650 dives, mainly in cold waters. I have had: - during predive check, one failing regulator 1st stage - during predive check, couple of failing regulator 2nd stages: a hole in rubber mouth piece, twice regulator diaphragms not settled properly after wash - couple of times tiny air...

I wouldn't use a chainsaw, even a dedicated one. Instead: 1) One foldable manual ice drill - the type used by winter fishers. A proper one will cut the hole in 5-10 seconds. Hole diameter 3-4 inches 2) A proper manual ice saw. The el cheapo ones are frustating and you'll get soaked in sweat...

On page 21 of the user manual, there is an example of a "pO2 low" warning. The strange thing is that the screen shows pO2 = 1.19 with a gas of tx16/45 at a depth of 1.3m. I think this is extremely misleading and that this bug is ironed out. On page 16, there is a no deco time of 50 minutes. It...

I have had three Liquivision X1s die: - first one had disappearing pixel rows until about half of pixels were missing and information was illegible - second one continued to dive despite me surfacing - refused to reset until ran out of battery charge - third one had a battery that swelled out...

I do this regularly to max 170ft/50m depths with max dive time 90 minutes. If the conditions are perfect, I might consider 200ft/60m depths. Typically the shore line is 10-20 miles away, often out of sight. I have a 26ft/7.8m RIB boat with twin 150 hp engines. The total length of the anchor...

As divers, most of us respect the current or earlier pioneers or record holders. They took many risks and most of them survived. However, many of us technical divers are today routinely performing dives that would have been record breaking a decade or two ago. Does this make the dive less...

Returning back to original question of: It is an accepted practise to have O2 in bottom gases with ppO2 of 1.2 or 1.3. This limit has been chosen to keep risk of oxtox during the active portion of the dive reasonably low. Likewise during decompression it is assumed that ppO2 up to 1.6 is...

Even with a catastropic failure, you are likely to have atleast one minute of breathing gas. Or you could do a free ascend to 80' before breathing EAN40. Personally, I would continue breathing the primary bottom gas until back gas tank(s) is fully depleted, and, then swap to the EAN40. Breathing...

Lauri, you are not superstitious? I've got 5 working Poseidon Cyklon regs for twins+deko/stages. Plus another (about) 5 waiting for service/spares. Plus 2 for Argon. And one for the DAN Oxykit. Oops, 13.

A spare mask is for me much more important than a dive computer. I once returned to a dive site to finish video shooting from the previous day. Whilst kitting up I noticed I had forgotten my dive computer AND bottom timer back home. I then performed my dive by repeating the previous dive as...