In general Sidemount is more task loading for a diver as the pressure in each tank needs to be balanced in order to have enough gas for an out of air diver and to be balanced on each side.
Television, magazines or stories from a close friend can all be used to explore the underwater world. It doesn't really matter which source you use, it is still exciting and very enticing. So what can we do to continue exploring? What is technical diving?
Sidemount Diver Specialty courses may count towards Advanced Open Water Diver certification. Ask your instructor.
Technical diving can be defined as being exposed to a ceiling that prevents a diver from ascending to the surface during a dive. This could be caused by a ceiling (in terms of a cave, a wreck, etc.) or a virtual ceiling that is created by a decompression duty. To avoid decompression sickness, it is necessary to perform mandatory decompression stops on ascent if you exceed the NDL. This requires special equipment such as a Twinset or Sidemount. Special equipment such as Twinsets and Sidemounts, gas mixtures with special properties, and additional training are required to be able perform the stops on ascent accurately to maximize Nitrogen off-gassing.
Sidemount divers tend to use two tanks. You can, however, use just one tank (I believe it's called the'monkey'), or use more than two tanks when doing deco dives.
Items such as cylinders and primary lights, which my be difficult to travel with, are available for rental. Be sure to alert us if you will need any of these.
The next day it was on to technical sidemount, which means adding our deco 50-percent oxygen and 100-percent oxygen tanks on either side. This increases your profile underwater so you must keep the tanks as trim as possible against your body. You have a couple of clips on each side of your waist. As you breathe down your tanks and they become positively buoyant, you adjust your tank position to the second clip position. The aim here is to be as streamlined as possible. Every few minutes you also switch your breathing from one tank to the other. That way the pressure in each tank runs down at roughly the same rate, and if there is a failure with either tank or regulator, you’ll still have gas to breathe. As with all new things, building up experience is key to comfort and enjoyment. I spent the next few days doing deco dives with the sidemount rig, buddied up with Evolution co-owner David Joyce — a hugely experienced Tec diver and Trimix instructor. On one dive we visited the Japanese Mogami wreck down at 164 feet, where I was beguiled by the bits of old gas masks, uniforms and even a few bones we saw.
I have just arrived in Malapascua Island on the Philippines. Over the next two months, I will work my way to becoming a Tec dive instructor. I've been a recreational dive instructor in Bali for two years. I would like to add more experience to my portfolio. Sidemount PCB was my first experience with technical diving. Tom West (PADI instructor-trainer) made me a certified Tec-50 diver.
To dive, you must have a minimum of fitness and good health. Before diving, you may need to be cleared by a doctor if your health is not in good condition.
If you (or your physician) have questions about medical fitness to dive, contact the experts at Sidemount PCB.
Decompression divers can dive to depths of 130ft. They can add Helium to their cylinders, and then they will be able to explore the world of the rare. They often visit the wrecks and reefs less often than astronauts to Mars every year.
Each PADI Specialty you complete gets you one step closer to earning the elite Master Scuba Diver™ rating.
from 170 to 350 feet
While conventional scuba diving has a recommended maximum depth of 130 feet, technical divers may work at depths ranging from 170 feet to 350 feet, and sometimes even deeper.
The depth range of oxygen rebreathers (simple closed circuit) is limited to approximately 6 m, beyond which the risk of acute oxygen toxicity rises to unacceptable levels very quickly.
To begin a technical diving course, you must have completed the following prerequisites: a PADI Advanced Open Water Diver certificate or equivalent, a PADI Enriched Air Diver certificate or equivalent, and a PADI Deep Diver certificate or proof of at least 10 dives to 30 metres/100 feet.