Precision Diving

I was talking with a diving friend. He mentioned that during a visit to a local dive store, the employees were referring to 50% Nitrox as 50/50. They said that 50/50 was 50% oxygen and 50% air. Air is composed of 21% oxygen and 79% nitrogen. Now, my fifth grade math may be a little rusty, but 50% + 21% + 79% = 150%. Unless this dive store has found a new gas law, it looks like a quick review of Dalton’s Law is in order. (more…)

Zebra mussels are a fresh water mollusk that have invaded the Great Lakes region. Originally discovered in 1988 in Lake St. Claire, these invasive species have disrupted the marine ecology. For divers, these creatures have helped and hurt our diving in the Great Lakes. Even boaters have been effected as boats that do not have the special paint on the bottom can attach zebra mussels to the hull. Many cities who use the Great Lakes for their drinking water source have been affected by the invasion of the zebra mussels. (more…)

I’m looking for a couple people who would be willing to write a few guest posts for this blog. Specifically, I’d like posts on equipment reviews and dive reports. Posts would need to be in the 500-1000 word range. If supplying pictures, you must have own them or have written permission to use them (I don’t want to get into copyright trouble). If you would be interested, use the contact form to let me know.

Dive Safe,
Duane
Precision Diving

“Tank factors? Aren’t those things people should consider when purchasing a tank? Things such as size, color and buoyancy characteristics?” This was asked by an employee at a local dive store when he overheard me talking about dive planning. It didn’t really surprise me at the time as not many people have heard the term tank factor. The truth is, tank factors are a critical part of planning our dives and divers should have an understanding of what they are in order to plan their dives properly. (more…)