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you are always meant to round the O2 % down rather than up. This means that your computer's decompression calculations are more conservative. I you round O2% up, then your computer thinks that you are absorbing less N2 than you actually are so the data it gives you is wrong. However, you...

simple question: why is a pony bottle called a pony bottle?

I think that it is best to use the victims's bcd. This means that if they become overly buoyant, you can just release them and you'll know where to find them. If you are using your bcd, if for some reason, you lose contact with the victim, they will sink and you will shoot up. This not only...

she was voted sexiest woman in diving this year in a UK magazine t

I always thought it was just a way to get newbies to stop flapping with their arms, but looking at the rest of the replies I could be wrong! T

thanks for all your help guys. I'm enjoying some unseasonally hot weather at the moment, just thought i'd let you know.

I am thinking of doing the PADI wreck speciality course and was wondering what it consists of. I am very interested in getting involved in serious wreck diving, would this be a good course to start with? Any comments or experiences gratefully received. T

Ddid anyone in the uk see the program about Tanya Streeter breaking the world no-limits freediving record. It was pretty amazing 160m!

I'm thinking of going up to Scapa Flow for a week this summer 'cos everyone's told me that it is absolutely fantastic. I was wondering if anyone had been there and had any advice about which boat to choose or where to stay etc. Any other comments about scapa in general would be appreciated...

I have been diving in a membrane (shell) drysuit all through the English winter (down to 2degrees celcius) worn with the right undersuit, they provide plenty of insulation and can be used over a much greater range of temperatures. Trewbs

I am just starting to dive in the sea of NE coast of the UK, farne islands etc. This means that I'm diving deeper than I ever really have before so I invested in an pony bottle. I was wondering how many people use them and what kind of configurations are used? Thanks for any help Trewbs

I think that solo diving is irresposible and v. dangerous if practised by an inexperienced diver, or even an experienced one in new surroundings. But... if done by an experienced diver who knows the dive and who has redundancy (i.e. totally separate air source- pony, spare air etc.) An...

can a pike eat a duck? no...really, its a serious question. I was diving yesterday and saw a small bone on the lake bottom, I picked it up and put it in my pocket so I could find out what it was. I asked one of the instructors and he said that it was a duck femur which are left when the...

I've been taught by quite a few diving instructors, most of whom have no further ed. at all. This doesn't stop them from knowing everything there is to know about scuba, they could just be bad at english or something. I've had gas physics explained to me by an instructor who left school at 16...

there is a magazine in the UK called Divegirl which takes a lighthearted look at the world of diving. I has a whole page every month dedicated to fetishism in diving- its v. funny. it is also full of scuba fashion (obviously) the KY jelly thing is also a problem, I went into my local...

After listening to all you guys and talking to a few instructors at my dive school, I've decided to try and persevere without ankle weights by just playing around with my trim. If this really doesn't work for me, then I'm going to get a pair. Cheers for all the advice, Trewbs

I was diving in my local quarry on Sat. when my reg. free flowed. It made me a bit worried under water but I remembered sitting on the bottom of a pool holding the purge button and "sipping" the stream of bubbles. So I signaled to my buddy to ascend. It all ended happily enough with quite a long...

I was thinking of diving with ankle weights with my dry suit because I'm always worried that my feet are going to float up. Does anyone has any comments/advice about them? Trewbs

I find that I have to check pretty much all the time to feel comfortable that a) my buddy is safe and b) he is close enough to help me if anything goes wrong with him not sure if this helps

I recently bought a body glove epic II membrane dry suit. I have used it quite a lot. Its great... no leakage, good valves, zip cover, braces, etc. I would recomend it to anyone. It is fairly expensive but not overly for a suit of its quality. I managed to get an undersuit thrown in for £500...