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not likely unless he was swimming backwards the whole time. Banging to a tree trunk would roll the valve open not closed. At least now we can maybe agree that the education against the quarter turn rule should be enhanced. There has been recent close calls reported on this board as well. It is...

The Finnish police released additional information about the accident. It was found that the diver's tank valve was only "a little bit open" which caused increased breathing resistance at depth (they went to about 25m) and carbon dioxide buildup which eventually lead to drowning. The information...

They are originally made for filling pellet gun tanks and such and they work fine for that kind of small use. It is of course more practical than using those high pressure hand pumps for filling scuba tanks but still takes too long for proper scuba use even if you could filter the air properly

There was extensive discussions here about those small chinese compressors just a while ago. The consensus was that it can be done but it is highly unpractical for actually doing scuba air fills because the compressor has so small output that it cannot fill a single scuba tank without extensive...

It is easier to access the gate knob if it is facing outwards. You will notice this especially with heavy gloves and when on land when the weight of the clipped gear pulls the boltsnaps down so that you would need to lift them to access the knob if they would be facing inwards. I find the snaps...

I dive almost always the venturi OFF on the primary reg. I use it only when I need extra air due to workload. There is no harm using it but it is easier that I don't always need to switch it off before taking reg out when talking etc. .... how detuned one's secondary needs to be that you can...

learning to automatically exhale when you are about starting to drift up and inhale when you are about starting to drift down also helps. Without any reference point it may be challenging though. I personally have to struggle with equalizing quite often so small pauses in breathing are...

the xtx50 adjustment knob would disturb me a little on the octo. it protrudes a little bit and makes the reg thus wider and more awkward to handle. Not a big difference but me doesn't like. On the primary the knob is somewhat useful but you could do without if the reg is adjusted properly...

more obvious comparison in Europe for colder water might be the Apeks or Aqualung vs. Mares Abyss or some of the Scubapro models. I have seen some use Halcyon as well but the Apeks vs. Aqualung vs. Mares vs. Scubapro could be more relevant to rec diver I think and they all have wide presentation...

where are you diving? warm or cold water or both? which brands and models can your LDS service? the 600 per reg set would be plenty if you don't need air integration or other fancy extra features. you may want to consider using plain simple brass SPG instead of a console. if you need the depth...

probably their prices will go up a little when the Brexit happens but surely they will continue without much harm. the price is pretty small factor with these after all because regs last years and years. If the parts prices and service charges are affected then it may change something because...

the Cressi looks like a nice lightweight travel reg for warm water. Almost any regulator can be used for warm water holiday diving type activity. But it may get a little more challenging if you throw in very cold almost freezing water, mud, dirt, some accidental abuse during the dive like...

I use a 5mm full hood for quarry diving in summer if the temp at bottom is around 10deg. Celcius and if it is lower temp for extended periods like 4 or 5 degrees C them I will use my 10mm hood. Will get the cold headache easily so the 10mm hood is in regular use. If the water temp is lower than...

If the alternate 2nd uses miflex hose I would not worry too much. I personalle use ds4 on the left post and it also has these alternate2nd hose bending issues but I use miflex hose on that even when all the other hoses are normal rubber

If you swap them they have a little bit wider profile which may affect your operating valves etc. slightly. Also the diagrams less protected that way. If you are really worried about hose routing you can swap one of the 1st stages to DST with 5th port so that either the wing inflator hose or...

The rubber diagrams sides face inwards towards each other and the hoses go downwards

most LEDs produce something around 100 lumens per Watt. Probably it has 40w LED inside I believe. 40W times 5.5hours is 220Wh. Not taking into account any losses in electronics. I would assume either a little bit lower output like around 3000 lumens OR shorter burn time like 4 hours or so. OR...

some time after the OW course I started to notice little transparent threads of goo which tend to come out of most person's regulators exhale valve. Yes that is saliva coming out of the regs continuously, it is understandable that one is drooling like mad when breathing very dry air all the time...

One could also just get a short piece of aluminium pipe, two hose clamps and a small loop of webbing just like the ones used in real canister lights. Then mount it similarly to a normal canister. No need to mill anything, all tools you need would be hacksaw and a piece of sandpaper to round the...

Just get a medium sized pouch and attach it to the belt in the place of the canister. works well and is "DIR-allowed" as far as I know and you can even use it for carrying stuff :wink: I keep wetnotes there and sometimes other small stuff which needs to be accessed easier than if it would be...