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Bubbles and DCS are not the same thing. Many divers have silent bubbles, they do not have DCS. We all must accept that there is no simple test for DCS to use at the beach. The bubbles are normally caught in capillaries of the lung and shrink there as the nitrogen dissolves out of the bubbles...

Sheila, this sounds like a good example of peer pressure to me. You as a teacher will know all about this issue. Beware of doing dives you do not comfortable with. If something feels wrong, don't do it. Murphy's law of thermodymics applies to diving: things get worse under pressure :cool2:

I do a weight check at the beginning of my first dive in new surroundings. get as much air out of the wet suit as possible, try how much lead it takes to sink when exhaling completely and then add the weight of gas in lead. This will get me slightly overweighted for my first dive and I can...

There are very little data on diving and pregnancy but theoretical considerations and the available data discourage diving during any stage of pregnancy https://www.diversalertnetwork.org/medical/articles/The_Risks_of_Pregnancy_and_Diving

As soon as you feel or see you are going up EXHALE and if that does not stop your ascent immediately dump some of the air in your BCD. Like stepping on the brakes of a car does not stop the car immediately, it only slows it down. Under water the reaction to your action will be delayed. That is...

maybe the lever was bent during cleaning?

The DSAT algorithm is good as long as you stick to recreational limits as NDL and max depth of 40m. As soon a s you go into deco it racks up masses of deco-obligation. The model is not meant to be used for this sort of diving, so if you decide you want to exceed these limits you are better off...

Technically it is no problem even if the compartments are not completely cleared, it would only reduce the NDL (assuming recreational diving), but I would not want anyone to scratch the display of my divecomputer.

purging the already freeflowing regulator will not resolve the issue if it was the one you were breathing from before. You can try to put your finger in the mouthpiece to stop it. Did you hold the mouthpiece down when the freeflow started? Or had it already started before you removed the...

I cannot tell anything about GC but when I dived at Lanzarote in 2012 we hat plenty of schools of fish. I cannot provide fotos though as I flooded my camera on the third dive :-(

As you say you do not experience any symptoms 7 days after the last dive and your tissues are back to normal nitrogen load by now, I am sure you are safe to fly without DCS. As far as I know there is no equipment that can dignose DCS accurately. If you do not feel well, you should see a doctor...

depending on where you travel for diving you might likely find out that you need this AOWD card sooner or later. many of the Op's I have dived with required them for some of their sites. AOWD, Nitrox and Deep are the cards to have. Apart from that the your gain through training depends on the...

You pass the bank counter on your way to passport control. I always got my visa there and changed some money right away. I always carry local money when abroad even if the only use might be tips.

Ratio decompression - Wikipedia, the free encyclopedia will give you links to follow

I posted a question in the Manufacturers Section of Scubaboard http://www.scubaboard.com/forums/shearwater-research/480432-predator-voltage-swings-during-dive.html#post7090479 and received a competent answer from a representative within three hours which offered to take care of my minor problem...

Thank you Shearwater! I received my replacement cap and replaced the battery and the cap. The swing is now practically gone. The minor changes in the milivolt range can be explained by automatic adjustment of the display brigtness...

AFAIK the heavier breathing at lower tank pressure is not influenced by a un/balanced second stage, it is a function of the first stage

This seems to be due to the fact that new seats have to be broken in (expr?) and not all shops have the equipment to breathe a reg for hours after rebuild and before fine-tuning. It makes sense to know how to detune a reg :-)

Not really cheap, but this is exactly what you are looking for Waterproof Parka | Surf Coat | Boat Coat | Swim Parka | Surf-fur.com :D

I have seen watches go slow and I have seen watches stop. Yes I am in the Computer fraction for recreational diving and I am not even convinced planning a tecnical dive with tables is superior to using an electronic tool like Multideco