Tag Archives: Tec

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 Decompressions Diver

[singlepic id=259 w=320 h=240 mode=watermark float=left]UWE would like to congratulate Bruno P. for his successful completion of the TDI Decompressions Procedures course.   Last night Bruno and I headed out to the HMCS Chaudiere to complete his certifying dive.  Our dive plan was for 150 ft, for 25 minutes, which was a bit deeper then what we actually did for our dive.  In the end, the bottom time worked to 30 minutes with a max depth of 135ft.

As we left the bottom to our first decompression stop we had a short 14 minute obligation which was cut in half when we reached the 20 foot mark where we did our gas switch to 100 percent O2.  Over all the dive time was 57 minutes.  The visibility on the Chaudiere was about 50 foot once we hit the 90 ft mark.

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!!

New Decompression Diver

[singlepic=102,320,240,watermark,left]Uw Explorers wants to send out our congratulations to Jeremy Chesworth on completing the Advanced Nitrox and Decompression procedures course yesterday!  We planned to challenge Jeremy with a dive to 170fsw off 9 mile point.

Monday night had everyone hard at work preparing decompression mixes for the dive, while some prepared the decompression schedule for the dive.  Once completed we broke for the evening with the agreement to meet early the next day so we could get everything together and out to the dive site.[singlepic=138,320,240,watermark,right]

Once on site, we preped and rolled into the water….did our bubble checks…and then started our descent.  As we dropped through the 50 foot mark we could tell there was a bit of a current.  So our intial swim was going to be a but harder then expected but there were no problems as we finally arrived at the scar that leads to the deep drop off!  Visiblity was at least 150 feet, and water temps were still good for decompression!!

Overall it was a great dive…interested in becoming a Tec Diver…be sure to check our courses tab right here at the website!!

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!!