Tag Archives: Deco Procedures

Minimum Deco Tables


Well everyone here at UWE have had to ask the question, what the heck is everyone doing diving on a bottom timer, doing multi level dives and yet have no apparent plan.  After asking a few divers, I have since discovered this set of tables called Minimum Deco Tables printed by DIR/GUE.  After doing some research it sure sounds interesting, and I am still going through the how to use file, but it still appears that this is to be a square dive profile, which of course no one seems to be doing.

Since returning to Vancouver to work, I have run in to a large number of people who have been bent, or have suffered a DCS since I have been back to the city, and I have to wonder if this is the reason. Not that the tables are wrong but maybe the divers are not doing it correctly which I think is more the situation.   Does everyone know what a square dive profile actually means?  That means the planned depth and time is it, there is no multi level diving it, no new depths, the time is the time…and we do not make it up as it goes.

Dive computers, now I must say, I do not follow my computer blindly, I wear two as I have one that has failed on more then one occasion, but then again I am diving a computer dive, a multi level computer dive which means, I have custom tables being made for me as I dive.  If the algorithm that is in the computer correct, I should be, or there should be a modicum of safety built into it.  Especially if I dive my limits conservatively.

If you go to our Downloads Page you will find the DIR/GUE Minimum Deco Tables, for your review.  Be sure to check back in the next couple of days as we will add to the site how to use the tables.


HMCS Chaudiere Deep Dive

Well it has been a busy couple of days. Saturday had us finishing up a Dry suit course, and the Deep and Drift dives on an Advanced Diver course from PADI.

After completing some knowledge reviews, we set out on the zodiac to hit the Chaudiere first, for around 11 am, do some Deep skills and just enjoy a nice tour of the Chaud. Dave did a great job with the skills, while Vas completed his first dive carrying a stage decompression cylinder, as he is preparing to train with me for the Decompressions Procedures/Advanced Nitrox course.

The vis was a little rough on our way down the mooring line, but opened up around the 50ft mark and then it was easily 100 ft. The water temp is still in the 46 – 48 degree range surface to depth, so the water is still a little cool…but it was great being back in the old stomping grounds.

The afternoon had us diving on the Tzoonie Narrowes, which is always a great dive…even though I lost my wrist seal, and flooded my dry suit.

Great weekend out training and diving thanks to Suncoast Diving!