Dive calculators and converter are out

Screenshot of Dive Calculator page

We are proud to say that a new helpful page has been added to the website.

Dive calculators and converters can assist you in making quick calculations or convert some measurements. Calculate you surface air consumption or SAC, an equivalent air depth or EAD, your equivalent narcotic depth or END for diving with helium and much more.

Head over to the Dive Calculators page to see what this is about.

IAC – International Aquanautic Club

Logo of IAC - International Aquanautic Club

The company Barakuda was founded in 1949 as an equipment manufacturer with the first fins produced in Germany. On 1 July 2012 Barakuda International Aquanautic Club ( Barakuda ) became the International Aquanautic Club or IAC for short.

Training offered: Recreational, Technical

Website: https://www.diveiac.de/en/

Email: info@diveiac.de

Headquarter: Germany
Address: Borbecker Strasse 249, 45355 Essen
Phone: +49 (0) 201-670049

PDIC – Professional Diving Instructors Corporation

Logo of PDIC - Professional Diving Instructors Corporation

In 1969, PDIC or the Professional Diving Instructors College was formed by Ed & Ruth Brawley in Monterey, California. This was the first Scuba instructor’s college in the United States of America. The name was changed to the Professional Diving Instructors Corporation (PDIC) in the early 1980s when Frank & Doris Murphy purchased PDIC from the Brawley They also at that time relocated PDIC from California to Scranton, Pennsylvania. In the late 1990s, their son Keith Mel Murphy took over the company and continued to operate the worldwide agency.

Website: http://www.pdic-intl.com

Email: info@pdic-intl.com

Headquarter: United States of America
Address: 1623 W Jackson St, Muncie, IN 47303
Phone: 1-765-281-0133

PSAI – Professional Scuba Association International

Logo of PSAI Professional Scuba Association International

PSAI was first founded in 1962 as Florida Divers Supply (FDS) by Hal Watts. In 1969 the name was changed to Florida State Skindiving Schools (FSSS). FSSS at the time was one of the largest dive schools in the world, with four locations in Florida and one in St. Lucia. It was as FSSS where the Golden Triangle originated and later evolved into the PSAI logo used today. As the organization had expanded well beyond the borders of Florida the name was again changed to the Professional Scuba Association (PSA) in 1988. The tenants, upon which PSA training was built, were so successful they led to further expansion into the international diving arena. Thus, in 1995 the “I” was added to PSA to make it the Professional Scuba Association, International (PSAI).

Training offered: Recreational, Technical, Wreck, Cave, Rebreather

Website: http://psai.com

Email: global.headquarters@psai.com

Headquarter: United States of America
Address: 8174 Crescent Beach Road, Sand Point, MI 48755
Phone: 989 856 9979

Rinse inside the console boot

Most divers have their SPG in a boot along with some other instruments. Depth gauge, compass, dive computers. Once in a while, the SPG should be popped out and its connection where the hose swivel is should be rinsed as well.

Accumulation of salt water or sediments can corrode the connection and accelerate the deterioration of the metal. This leads to most of the leaks and failure of submersible pressure gauges.

Other instruments might benefit from getting pulled out of the boot and rinsed as well.

Set up your gear early

To set up or assemble your gear at the beginning of a trip out has many advantages. It allows you to familiarize with it if you have not been diving for a while. Or gives more time to find a solution in the event of a problem or breakage. Also for night dives, to set up with the natural light will be much more helpful than any other source of light.

By setting up your gear early you will also have more time to check if each part or component is working properly. For safe divers, it should be part of every dive but also be done with attention, taking the time to do it properly.

Being excited and going in a haste is a good way to forget things. Preparing ahead is also a good way to make sure nothing is missing.

It is also a good time to figure out how much weight you might need with the equipment you will be using.

Learn to orally inflate your BC

Everyone can press a button but not everyone is comfortable to inflate a buoyancy compensator orally in the water. It is a good skill to have and it cannot hurt to really master it. It is taught in all entry level diving course as a mean to attain positive buoyancy in the case of an emergency. It is also part of a proper buddy check.

Before the appearance of the power inflator or low-pressure inflator BCs were always orally inflated. Having an on-demand inflator has just made it easier.

Be it on the boat at buddy check, just after the entry to make yourself float, underwater to adjust buoyancy or back to the surface after the dive, there are many occasions divers can practice.

Just make sure you are comfortable and that the conditions are good before practicing. Do not hesitate to use the button in doubt or if you feel you are not positively buoyant enough.

Another reason outside safety is to save a little bit of air every time. Not much but if added to all the other little things can make a difference.

Buoyancy, Buoyant

Buoyant or buoyancy is relative to the sinking or floating characteristics of an object in liquids. We can say objects are positively buoyant or have a positive buoyancy when they float. Inversely are negatively buoyant when they sink, and neutrally buoyant when they neither float or sink and remains at the same depth.


Normoxic is the name given to a breathing gas mix for which the percentage or fraction of oxygen is similar to the one of air, but contain a different mix of other gases. Along with hypoxic and hyperoxic, normoxic is one of the three kinds of breathing gas mixes for diving.


Hyperoxic is a term used for breathing gases that has a higher percentage or fraction of oxygen than regular air. The term or word is not so commonly used because of the designation Nitrox or Enriched Air, which is used instead to cover hyperoxic gases. It is the opposite of hypoxic.