Next, it was time to do technical sidemount. This involves adding our deco 50-percent and 100-percent oxygen tanks on each side. You will have a higher profile underwater, so it is important to keep the tanks as close to your body as possible. There are two clips at each side of the waist. You adjust the tank position by inhaling down your tanks. This is where simplicity is key. You also need to switch between tanks every few minutes. This ensures that the pressure in each tank is at the same level, so even if one tank or regulator fails, there will still be gas for you to breathe. Building up experience is the key to comfort, enjoyment and success with new technologies. The next few days were spent doing sidemount dives, budding up with Evolution coowner David Joyce, a highly experienced Tec diver and Trimix instructor. One dive took us to the Japanese Mogami Wreck at 164 feet. I was captivated by the old gas masks, uniforms, and bones that we found.
Divers who are comfortable with sidemount diving can also enjoy open-water dives. Why? Because sidemount diving is very easy and comfortable.
Every PADI Specialty you complete is one step closer toward the Master Scuba Diver(tm); rating.
Because of the difficulties with single orifice doubles and backmounted independents, doubles were introduced to backmounted diving. Independents are two cylinders that are strapped to one's chest with separate regulators. A 1st stage failure would result in only one cylinder being used by the diver. A single orifice double was two cylinders connected together by a valve and one regulator. All gas would be lost if the first stage of a single orifice twice set failed. Today, both problems are eliminated by the isolated manifold doubles. Each cylinder can be operated independently. However, the diver can still inhale gas from both cylinders using one regulator. The doubles are usually held together by metal bands. The valves are connected with an isolation manifold so they can be separated if necessary. Doubles diving with backmounted doubles is similar to a regular single-cylinder backmount. It offers a vertical profile that is the same.
Initially I had no interest in technical diving. I distinctly remember chuckling to myself at the Tec divers I saw, wondering why anyone would want to carry more equipment underwater. I love the sense of freedom and proximity to nature that can envelop you in “the silent world.” However, Tom had a reputation as an inspirational teacher, and as I was working in a dive shop with Tec courses it seemed rude not to at least try.
Our Scotty’s diving center headquarters facility is where all our Tec diving and technical scuba diving lessons are offered. It's located at the Shangri-la Hotel in Mactan. If you don't belong to the Shangri–la hotel, we can either pick you up at home or you can walk in.
Sidemount and technical sidemount were my first courses. Sidemount diving is, as its name implies, where you place your tank in front of you. By the end of the session, my hands were covered with cuts. You can remove the tanks from their clips and place them in front of yourself, Superman-style, to streamline your life. The afternoon dive went much smoother after some adjustments to the harness. I was now comfortable unclipping the harness and 'Superman-ing" with the tanks. Sidemount is a great way to have more freedom than having two people on your back. Matt created obstacle courses, and soon we were flying around them with tanks at our fronts, barrel-rolling, and swimming upside down.
It's normal to be anxious about how it will all work out. Your instructor will assist you with everything!
If you worry now about how this will all come together, don’t – a big part of the course is learning how to set up your Sidemount equipment as well as to measure and adjust bungees and clips to make sure your tanks are in trim next to your legs. And of course, your instructor will help you with all of it!
SDI/TDIIncludes 2 Open Water DivesMinimum 18 Years, 15 Years with parental Consent.
Certification cards: We issue these only when earned. Simply taking part in a course does not guarantee certification. For cave courses, certification cards from multiple training agencies may be available. C-cards generally cost around $30 each, depending on agency. Your instructor can tell you more.
Scuba diving requires a minimum level of health and fitness. Chronic health conditions, certain medications and/or recent surgery may require you to get written approval from a physician before diving.
To dive beyond 130ft, decompression divers should add some Helium to their cylinders. This will allow them to enter the realm of the seldom seen. Sometimes, the reefs and wrecks they visit are visited less often per year than astronauts to orbit the moon.
The goal of this course is to teach you the basics of how to use the equipment in your cave or tech diver training. You will also need the same equipment for the course. This includes:
Technical diving (also known as tec diving or tech diving) is non-professional scuba diving that exceeds the agency-specified limits of recreational diving.