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Should I rent or own my Scuba Diving Equipment?

Should I rent or own my Scuba Diving Equipment?

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Ask any experienced scuba diver and he or she will soon tell you that there is nothing like owning your own gear. Each time you go away on a scuba diving trip you will at first need to hire out scub... Read more

Laughing and Diving at Deep Blue Dive Resort, Utila

Laughing and Diving at Deep Blue Dive Resort, Utila

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Relaxed, at home, fun, great vib!!!....is what I felt during my stay at Deep Blue Dive Resort on the island of Utila. Steve, the owner, I must say, is one of the most unique people I have ever met. W... Read more

Post Dive Flying – Flying Implications After Scuba Diving

Post Dive Flying – Flying Implications After Scuba Diving

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The experience of scuba diving and the variety of dive sites which are spread across the world mean that it is only natural that you’ll probably be flying before and after your trip. Whilst you... Read more

Scuba Diver left fighting for life after being hit by propeller while diving in Egypt.

Scuba Diver left fighting for life after being hit by propeller while diving in Egypt.

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Imagine fighting for your life after being sucked into a boat propeller. On a scuba diving holiday in Egypt, Maurice Abrahams, suffered horrific injuries in this exact horrific situation – and ... Read more

Scuba Diving beautiful New Zealand

Scuba Diving beautiful New Zealand

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There are many dive centers in New Zealand as this country is perfectly positioned to see a number of wonderful rugged coastlines covering its two islands of the South and the North.  Dive s... Read more

Roatan Island Marine Park and Conservation

Roatan Island Marine Park and Conservation

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The Roatan Marine Park (RMP) is a grass roots, community-based, non-profit organization located on the island of Roatan, 50 kilometers off the mainland coast of Honduras. Our organization was formed... Read more

What is a Buoyancy Control Device (BCD)?

What is a Buoyancy Control Device (BCD)?

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When you go scuba diving it can be frustrating when, for instance, you visit a wreck and find yourself floating down to the sea bed. A shipwreck often sits on the sea bead floor but some of the more ... Read more

Five Best Scuba Diving Spots In The Canary Islands

Five Best Scuba Diving Spots In The Canary Islands

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Dive Holidays come only a few days a year. So if the opportunity presents itself, one should take advantage and plan a getaway to remember. It is particularly enticing to see pristine waters and pow... Read more

Dahab International Festival May 14th-20th 2011

Dahab International Festival May 14th-20th 2011

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Dahab Festival 2011 Only days left till the Dahab International Festival from the 14th - 20st of May 2011. Planned to be Dahab's greatest celebration ever of all the things we love to do in Dahab. ... Read more

Scuba Diving in the Bahamas

Scuba Diving in the Bahamas

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Scuba diving in the Bahamas is one of the world’s most sought after pastimes for thrill seekers fascinated in an underwater world experience that will stay with them for the rest of their live... Read more

Our visit to Utopia Dive Village Resort on Utila Island in Honduras

Our visit to Utopia Dive Village Resort on Utila Island in Honduras

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Since becoming on of our Dive Resort advertisers last year, Utopia Dive village Resort has been on our list of places to visit. If you like remote, quiet and relaxing places to visit and dive, you mu... Read more

Choosing a Dive Center to do your IDC (Instructor Development Course)

Choosing a Dive Center to do your IDC (Instructor Development Course)

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When you take your PADI Instructor Development Course you will find it is made up of two parts; the Assistant Instructor Course and the Open Water Scuba Instructor Course. Once these are completed yo... Read more

Diving in Hawaii.  Why Maui Offers Divers Paradise

Diving in Hawaii. Why Maui Offers Divers Paradise

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Hawaii has to be one of the United States' most loved places for a holiday, and it’s unsurprising what with its gorgeous climate and paradise location. But for divers it offers something even m... Read more

Planning a Dive Vacation

Planning a Dive Vacation

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Becoming a certified scuba diver is the first step in unlocking the door to an amazing world that only a small percentage of the earth's population will ever see. The ocean is the planet's last front... Read more

Why Scuba Diving in the Turks and Caicos?

Why Scuba Diving in the Turks and Caicos?

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If you are a scuba diver, there is a chance that you’ve heard of the Turks and Caicos Islands. This is a popular scuba diving location about 60 minutes away from Miami. In the next few lines, y... Read more

Dive and Snorkeling Sites off Ambergris Caye, Belize

Dive and Snorkeling Sites off Ambergris Caye, Belize

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  Along the entire length of Ambergris Caye the reef is comprised of spectacular three dimensional coral formations which include canyons, grottoes and tunnels. Curiously, the more common reef f... Read more

Benefits of Scuba Diving with Nitrox

Benefits of Scuba Diving with Nitrox

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Over the past 20 years there have been many advances in the scuba diving world because of the availability of diving with enriched nitrox air. Put into simple terms, nitrox is air with more oxygen in... Read more

Scuba Diving around Sharm El Sheikh on the Red Sea

Scuba Diving around Sharm El Sheikh on the Red Sea

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Sharm El Sheikh Local Dives covers all the dive sites north and south of Naama Bay between the straits of Tiran and the town of Sharm El Sheikh. You reach the different local dive sites from Naama Ba... Read more

Macro photography in scuba diving.

Macro photography in scuba diving.

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Macro photography is defined as photography where the image projected on your sensor is life size. This is referred to as a 1:1 magnification ratio, meaning the magnification is the actual size of t... Read more

Scuba Diving around Cebu Island in the Philippines

Scuba Diving around Cebu Island in the Philippines

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Cebu Island is undoubtedly one of the best diving spots in the Philippines. Cebu has a wealth of colorful corals and numerous kinds of fish as well as a great opportunity to go whale shark watching.... Read more

TheScubaDivingDirectory.com is heading to Utila!!

TheScubaDivingDirectory.com is heading to Utila!!

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Michael here at TheScubaDivingDirectory.com is heading, from Roatan, over to Utila next week for some diving. Michaels heading there to check out the diving and to meet our 3 newest Dive Centers and r... Read more

The Perfect Scuba Diving Adventure in Key West, Florida!

The Perfect Scuba Diving Adventure in Key West, Florida!

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It’s not surprising that divers across the world hail Key West, Florida as one of the best locations for scuba diving. Apart from the scenic landscape that’s distinctive of the Florida ... Read more

Scuba Diving and Underwater GeoCaching, becoming more popular.

Scuba Diving and Underwater GeoCaching, becoming more popular.

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Underwater geocaches can be found in the waters of more than a dozen countries, from Indonesia to South Africa to Spain, but "there's just not that many of them out there right now," said Chris Waggo... Read more

Cave Diving – Tips for the Extreme Scuba Diver

Cave Diving – Tips for the Extreme Scuba Diver

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Cave diving is becoming more popular for many divers, and if you’re looking for an entirely new way of discovering underwater habitats, enjoying cave diving can be thrilling. However, it isn&rs... Read more

Scuba Diving in Thailand. The 5 Big Truths

Scuba Diving in Thailand. The 5 Big Truths

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No other country in the world could offer tourists such varied scuba diving sites like Thailand does. From beginners to seasoned divers, the islands of Thailand have so much to offer, with its amazin... Read more

Scuba Diving beautiful Koh Samui island in Thailand

Scuba Diving beautiful Koh Samui island in Thailand

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Koh Samui is a beautiful island in the Surat Thani region of Thailand. The majority of the professional scuba diving schools and dive shops in this area are affiliated with the SSS network. On Koh Sa... Read more

Some Scuba Diving Sites off Puerto Vallarta Mexico

Some Scuba Diving Sites off Puerto Vallarta Mexico

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THE MARIETAS ISLANDS A group of 3 islands, La Larga (long island), La Redonda (Round island) and La del Medio (Middle island). The Marietas Islands are located in the mouth of Bandera’s Bay a... Read more

Celebrate World Oceans Day with Birch Aquarium at Scripps, San Diego

Celebrate World Oceans Day with Birch Aquarium at Scripps, San Diego

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Scripps Institution of Oceanography / University of California, San Diego It's time to celebrate our big blue ocean!Birch Aquarium at Scripps Institution of Oceanography, UC San Diego, will mark Worl... Read more

Destination Hurghada on the Red Sea - Scuba Diving In Hurghada

Destination Hurghada on the Red Sea - Scuba Diving In Hurghada

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Hurghada, along with Sharm el Sheikh, is where it all started. These where the first two destinations of the nearly 20-years old diving history of the Red Sea. Diving in Hurghada needs no introductio... Read more

Important Steps to Avoid Decompression Sickness...or The Bends.

Important Steps to Avoid Decompression Sickness...or The Bends.

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Decompression illness is one of the leading concerns if you’re a diver, with the sickness a major risk for scuba divers. The severity of decompression sickness can range from light headedness a... Read more

Moorea - Tahiti Dive Sites

Moorea - Tahiti Dive Sites

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PAPETOAI POINTThe best spot for beginners and lessons in the lagoon. On a white sand valley, coral patches with a lot of small coloured fish are waiting for you. A little bit deeper, you will encount... Read more

Great Thailand Popular Dive Locations Map

Great Thailand Popular Dive Locations Map

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Heres a map of just some of the amazing diving locations in Thailand that one of our Global Divers sent to us. Read more

Our divers told us what was important to them when searching online for a dive center or resort.

Our divers told us what was important to them when searching online for a dive center or resort.

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A few weeks ago, we asked our 13,000 Facebook and Twitter divers, followers and members    " What is most important to you when searching online for a dive center, resort or liveaboard... Read more

Greek Dive Spots - Scuba Diving with the Gods in Crete

Greek Dive Spots - Scuba Diving with the Gods in Crete

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Greece, and certainly Crete, is surrounded with an air of ancient mystery and classic history. The birthplace of Zeus, and said to be Goddess Kalypso’s Lost Kingdom, the island is a huge attrac... Read more

Shark Conservation Act Signed into Law to Curb Cruel Shark Finning

Shark Conservation Act Signed into Law to Curb Cruel Shark Finning

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WASHINGTON (Jan. 5, 2011) — Humane Society International, The Humane Society of the United States and the Humane Society Legislative Fund applaud President Barack Obama for signing an important... Read more

Latest Global Scuba Diving Destination News and information

Worldwide scuba diving community with Scuba Diving Destination information, Scuba articles, Dive News and Dive stories.

Feb 27
2013

What is a Buoyancy Control Device (BCD)?

Posted by: sddiver96

sddiver96

When you go scuba diving it can be frustrating when, for instance, you visit a wreck and find yourself floating down to the sea bed. A shipwreck often sits on the sea bead floor but some of the more interesting spectacles and finds are discovered at the top of the wreck. This can be several feet above the sea bed.

Most divers find when they reach the top of the ship wreck they are automatically fighting to get back up to the top of the ship and using a great deal of energy in just staying buoyant in that position. This is where the buoyancy control device, or BCD comes in.
A buoyancy control device will keep you in position hovering in the spot you want to. No longer will you float up or down to the sea bed and miss lingering on those fascinating sites often seen on the ship deck and balcony.

This buoyancy control device is also needed like when observing schools of tropical fish that like to move around 12 to 15 above the sea bed. It is far more thrilling to observe the school face on rather than from below. Basking sharks are also better observed at eye level and not from several feet below them. A buoyancy control device is perfect for holding the diver in position to observe sharks that more often than not swim in the centre of the sea depth and only occasionally hover on the sea bed.
Your buoyancy control device will allow you to release air from an air bladder so you can float or hover at your own depth. The buoyancy control device is sometimes referred to as a buoyancy compensating device or BC jacket. A wings and harness style is becoming popular among scuba divers as an alternative to the BCD jacket style. The harness system uses a bladder that is trapped between the harness and the tank. This style is more often used where scuba divers are diving with twin cylinders. Many lately even come with secure pockets for your weights, so that a weight belt can be eliminated, although this method may take a little getting use to.


There are a number of features on a buoyancy control device jacket, including the adjustable band that allows you to swap out your tank(s) between diving sessions. A low pressure inflator is also fitted which allows you to release air or alternatively gain more air and inflate (to rise up in buoyancy). Another feature is the over pressure valve which lets air out of the buoyancy control device so it will not split the bladder when overinflated.
BCDs come in so many different styles and sizes so be sure to try a few different ones before investing in your own.