Tag Archives: Technical

Are you Prepared??

This is from a poster that was created by the famous Cave Explorer Sheck Exley;

Sheck Exley What If Chart....
Sheck Exley

Before the Dive, What if…;

  • The gas company put the wrong gas in the cylinders you fill from?
  • The wrong grade of helium is in them?
  • THere are impurities in the gas?
  • You miscalculate your mixtures and have too much oxygen?
  • Too little oxygen?
  • Too much Nitrogen?
  • Too much Helium?
  • The for mixing is wrong?
  • The filling temperatures are different?
  • The dive shop filling your tanks allows the gas to bleed back into their bank system?
  • Your cylinders contain flammable materials and you put in pure oxygen?
  • The dive shop tops your deep tanks with bad air?
  • A pinhole leak allows the helium to leak but other gases remain?
  • Your get the cylinders mixed up while filling?

One the Descent, What if…;

  • You do not have enough oxygen when you submerge?
  • Your depth gauge reads shallow?
  • A tank you thought had trimix was really nitrox, etc?
  • You over breath your regulator?
  • You have a delay before ascending?
  • You have a delay on the way down?
  • You have to exert a lot on the bottom?
  • You have a five minute line entanglement etc, on the bottom?
  • You lose your dive partner on the bottom?
  • You get blown from the dive site?
  • You lose your mask?

During Decompression, What if…;

  • The decompression tables you have don’t work?
  • You lose your decompression tables?
  • You lose your watch?
  • You lose your depth gauge?
  • You run out of decompression gas?
  • You drop one of your decompression cylinders?
  • Some steals on of your decompression cylinders?
  • Your decompression cylinders have leaked?
  • You are delayed at a decompression stop?
  • Danger from hazardous marine life keeps you from completing your decompression?
  • Your drysuit floods?
  • You get hypothermia?
  • You get the bends

These are all the situations one should think of when Technical Diving…and be sure you can accept the risks!! Otherwise do not do it!!

New Decompression Diver

[singlepic=135,320,240,watermark,left]Uwe would like to congratulate Mike J. and Neil P. for their successful completion of Advanced Nitrox and Decompression Procedures from TDI.  The guys started their training in early Sept, with two days of intense skills dives.  Their training was put off a couple of weeks due to some ear problems and equipment problems at the shop.

Deco Dive 1, was out on the HMCS CHAUDIERE which is an exellent training platform as it is easy to get depth fast, and also have an easy ascent line for the deco stops.  We enjoyed a nice swim through up through the operations room, into the bridge and out through the lower point on the bridge deckhead. [singlepic=137,320,240,watermark,right] Overall the dive plan was 150 for 20, and the final stop was 8 at 20 feet.  Nothing like a gas switching computer!!

Deco Dive 2 was completed today at the Tuwanek Abyss…the water temp is cooling and visibility was pretty short in the top 10 feet.  Once we broke through the top layer, the visibilty opened up to easily 100 feet, and crystal clear. We slide down the sand with the wall tight on our right….the wall had some nice chimney sponges on the wall.  We used V planner for the first time on the dive, though a bit different then the Deco Planner we normally use, it certainly has some great potential…so more investigation is needed.

Once again, congrates, and thank you to Suncoast Diving!!

Busy Week Training

[singlepic=104,320,240,watermark,left]Another busy week has passed with many different course going on. Jeremy and Bruno were completing Dive 3 + 4 of the Advanced Nitrox and Decompression Procedures course. Congratulations to Jeremy for completing his Advanced Nitrox!!! The training dives were conducted out at Tuwanek Point and then Tuwanek Island Left.

The first dive was all skills, though challenging both students did a fantastic job. The skills completed were V drills, S Drills (No mask), Donning and Doffing of cylinders with and without mask. Lift bag deployment, and then actual decompression stops…and NOTOX switches.[singlepic=102,320,240,watermark,right]

The next training dive was more of an exploration, with another S drill and full v drills. Knowing how dry skills can be…it is so important to ensure that the drills become second nature in the event there is an equipment failure.

Jeremy’s next dive is going to be a decompression dive on the HMCS CHAUDIERE. I am so looking forward to the one.

[singlepic=103,320,240,watermark,left]Interested in doing some training….there is a Wreck Course starting on Friday, the 8th of Aug…with one more seat available…or you interested in doing some Technical Dive Training….be sure to visit Suncoast Diving for more information.

Advanced Nitrox/Decomprocdures for Bruno

[singlepic=57,320,240,watermark,left]Today was the first day for the Advanced Nitrox/Decoprocedures course, after a morning full of academics and gear set up, it was off to Tuwanek for a skills dive!

Dive One of this course has a pretty steep learning curve, not only does the student have to get use to the idea of diving on the doubles, but then introduce the stage bottle, V drills, S drills, donning and doffing of bottles, and the SAC swim. Bruno did an excellent job!!

Tec Training in Sechelt Inlet

[singlepic=101,320,240,watermark,left]Jeremy completed dive two of is his Advanced Nitrox and Decompressions Procedures course. We made our way to the sail boat at Tuwanek point as the start point for the dive.

The dive plan was to use 34% Nitrox in the doubles as our back gas, and then do a NOTOX gas switch to the second gas we hand in our stage bottles. That mix as 50% Nitrox, so our planned change at 50fsw, would allow us to stay there as long as the gas lasted, without any concerns for the no decompression limit.

The first level of our dive as around 97 fsw for 30 minutes…then a slow ascent to the 50 fsw level in order to make our gas switch. Once at the level we continued with our swim, and at approximately the 50 minute point in the dive Jeremy popped a lift bag for our ascent to the surface. At this point we did some share air[singlepic=98,320,240,watermark,right] drills, and gas shut down drills for practice. Overall Jeremy did an amazing job!!

Stay tuned for the story on dive 3…and if you are interested in Technical Training, be sure to contact Suncoast Diving and hurry and get signed up for our next course!

Open Water Diver Training: SDI

Cloud SpSaturday had me finishing up some open water diver training. We met at the dive shop for around 9, and got the zodiac ready, did our briefings and out we headed from Porpoise Bay Marine in Sechelt. Our boat trip was around 15 minutes as we just headed to Tuwanek Point.

This little anchorage is an excellent spot for Open Water training, as there is a beautiful sandy flat area in some 25 – 30 feet of water. The few skills we had left to complete went off without a hitch, so we were free to head out on a southerly heading and hop on the wall for a nice little wall dive!

Both students did a great job and were successful in completing their Open Water training!! Well done….be sure to stop by Suncoast Diving and see what is the schedule for up coming training.

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