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I am conducting some research on Advanced courses (or the NAUI Master Diver course) and what activities an instructor can do to spice the class up a bit. Was there anything that your instructor did during the class that you thought was really cool? A few examples: During the Navigation...

I was searching for an update on Airspeed Press and saw this. I didn't see anything posted on SB about this, so posting it here. An absolute legend in the tech diving community! https://memorialsource.com/memorial/steven-lindblom

5dx DVD - I believe this contains DPV and scooter skills $7 Bruce Berman's Encyclopedia of American Shipwrecks - $25 Key West Divers Manual - Billy Dean's original mixed gas diving program from KWD in Key West. Collectors item for sure! $40 Voodoo gas stickers - From Airspeed press, same company...

Lifeguard Systems (Team LGS) Scuba Instructor Readiness Series Includes DVDs and Instruction manuals as shown. A great resource for an aspiring Scuba Instructor! $100 shipped to lower 48

A signed Hitler's Last U-Boat poster from a California Wreck Divers presentation about 15 years ago. $50 shipped to the lower 48

Rare Shipwreck Guides Joan Charles Joan Charles did an exhaustive job of documenting shipwrecks on the east coast. Gary Gentile wrote the summary in his Shipwreck Research Guide. I was fortunate enough to obtain two of the guides with Gary's assistance. $60 for both guides shipped to the lower 48

Doing it right Doing it right 2 Doing it right 3 Extreme Cave Diving Halcyon Rebreather Wakulla 2 CD Rom Hydrotest video (not cave diving) All VHS videos I bought the WKPP videos off George Irvine. He ran out of printed labels and wrote in the label on the second video. I received the Wakulla...

Andrea Doria Lire recovered during Gimbel expedition One if the Lira recovered from the Doria's purser's safe during the Gimbel Doria expedition. $250 + S&H includes the VHS video of the expedition.

https://www.espn.com/college-football/story/_/id/33974266/nebraska-cornhuskers-football-suspending-red-balloon-tradition-due-helium-shortage

What is the current status of the BOD and NAUI in general? I have lost track (and interest) of the latest drama with the Board. There has been so much turmoil, it is hard to keep up! It's a shame to see NAUI is such bad shape. I didn't bother voting in last years election or renewing this year...

Someone asked me to post a copy of a presentation I presented at Our World Underwater 2017 on my investigation into whether or not Neon and Argon are suitable breathing gasses. I am posting it here as it may be of interest to the tech diving crowd. Any questions, please post away.

Vance Harlow's Oxygen Hackers Companion - Airspeed Press - 4th Edition - Now a collector's edition! In good overall condition. I am told that this book is extremely hard to come by and goes for $120-150 on Ebay. Make an offer and see if we can work something out!

Oxygen regulator 25 lpm. I used this for DAN Oxygen Administration training classes. I did not buy it from DAN but it is essentially the same regulator. Has the DISS Outlet and barbed outlet for oxygen delivery. (Does not include the bag and tubing shown in photo). Last time I hooked it up, it...

Hi all! I am working on a DIY project and was going to buy everything new but figured I would ask to see if anyone has these items and wants to part with them. Two weight stays (preferably metal) Two D rings (Standard size or larger) Nylon weight belt with plastic buckle. Need 44 ish inches of...

For Sale Two DAN - Divers Alert Network Emergency Oxygen Kit - Includes everything you see in the photo below in the green pelican boxes. Units were used to teach the DAN Oxygen courses but haven't been touched in about a year. They worked when I last used them but are being sold as is. Tanks...

I haven’t seen a lot of postings on rinsing dive gear, so I thought I would pass along my techniques for keeping my dive gear working in good order. It seems intuitive but there are some actual procedures for rising out dive gear rather than just spraying some fresh water on your gear. A...

A set of seven scuba regulator repair CD Rom Instructional Videos - Poseidon Mares and Sherwood I used these to teach regulator repair to the technicians. While dated, they are great videos from training purposes and excellent reference for anyone looking to learn how to repair scuba...

Wakulla Springs Project Book - Technical Trimix Cave Scuba Diving book. Book is in like new condition but was printed in 1987 so there is some age on the book. Pages are in great condition and include the original maps that Bill Stone created from the project (A lot of people cut the original...

Seven foot regulator hoses. I have three for sale. They have been in a pool once but never in salt water or any open water use. Basically brand new. Seeking $10 apiece + S&H. I have three available.

Need some basic K valves. Nothing fancy. Breaking down some doubles and need two basis K valves. DIN or Yoke (or combo). Would prefer O2 clean but will look at what you got. Thanks! TB