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Greetings, As both an instructor and solo diver, your idea of carrying sounds great. I carry a AL20 on a bracket that mounts it beside my main tank, valve down so I can easily reach it, with the reg on a bungee around my neck so I can always find it. Basically, see if you can find somewhere...

Hi Guys, I am having a really big problem getting in touch with Mr Harlow and/or Airspeed Press. I have tried the website contact form and the 2 email addresses from paypal. And since my carrier pigeons are sick at the moment and my ESP is obviously not working, PLEASE HELP! If you know...

What the heck do you mean by this????? Any air system from surface supply to tanks to rebreathers may cease to function or run out if you do not keep an eye on your gauges and timers.

You should make your desecion on spare air or pony bottle size depending on your diving. For starters; Anyone who says you can only get one or two breaths from a spare air has never used one, they are good for an assecnt from 12m to the surface with a safty stop at 5m and have air still in...

Hello, As an instructor I have to put this up. Advanced Open Water Course verses an Advanced Diver. I have had many divers turn up on boats or at resorts that I have have worked at with "Advanced Diver" cards and have found many to not even have the skills I would like to see in a Basic...

If you "plan the dive and dive the plan", what happens when you violate the plan by a couple meters or a couple of minutes when you go and take a photo or video of that very rare fish you have ever seen before? These days with dive computers you can plan your dive before hand, but the...

I have done hundreds of dives with pony bottles as both a solo diver and as an instructor, I mount mine upside down as a back mount. By mounting the bottle upside down, I can very easily turn it on as soon as I need it. I turn the bottle on to check the pressure and then off to make sure I...