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Do any of you log your dives? I’ve been going over my dive logs from the 1970s and 1980s while writing a book, and they have been invaluable. Mine are written, but in the last 20 years I’ve been logging my dives on a log that I developed that is computerized. But, I’ve lost a few of those...

When I started diving in the late 1950s and early 1960s, we had a different quality of person starting diving. Many of us were on the local swim team, and had already taken the Red Cross Lifesaving and Water Safety course. We were very comfortable in the water, having done practices with the...

Thank Dennis Graver, my NAUI ITC course supervisor. He did some really revolutionary things with dive instruction. But during our NAUI ITC in1973, he made us do actual mouth-to-mouth artificial respiration on our buddy through 200 yards of surf in California. SeaRat

Okay, I read where one person is going to use tables to calculate his/her NDLs or need for decompression. But I haven’t see where these divers are wearing a dive watch. Do you wear a dive watch, and do you use the bezel to determine your dive time underwater? It’s kinda critical if you are...

If you dive the U.S. Navy method, the U.S. Navy Diving Tables, even for repetitive diving, are more conservative than today’s diving computers. Why? Because the tables diver starts counting bottom time from the time (s)he starts on the surface to the dime (s)he comes off the bottom to ascend...

Well, that’s interesting. When I started diving, there was no dive travel industry, and so we could only dive locally. That got a lot of us who wanted to see what was around us into the underwater world, in rivers, lakes and our estuaries in Oregon. We also made some trips up to Washington to...

I like what you say here, and understand that a bunch of poorly trained divers are “kicking the hell out of the coral,” but your website is more geared to cave and technical diving. SeaRat

Actually, you are selling a dive course to people who probably don’t need it. They are already certified, and want to go diving and observe underwater life. SeaRat

If your reason for diving is marine and aquatic life observation, do that instead of spending a lot of time and energy on the GUE course. There is a lot to see without entering caves and shipwrecks concerning marine or aquatic life, so go for that. My understanding of GUE is that they are...

As you can see, I use older double hose regulators a lot, and have two ways of dealing with the octopus. The first is to use a regulator which has LP hose outlets, such as my Trieste II and Sportsways Hydro Twin regulators. On my Hydro Twin, I have a Scubapro AIR I regulator, which has a...

Well, I started diving in 1959, and am now 79 years old. I think if my finger counting is correct, that comes to 66 years of diving! Yikes. SeaRat

This one actually looks kind of triangular. ;) John

I may have posted this before, but I’m now 79 years old, and was certified in 1963, LA County. But I began diving in 1959, actually. So by counting on my fingers, I’ve been diving for 66 years now. SeaRat

The “correct J-rod length” is one you can get to. I don’t think there was ever a “correct length” specified. SeaRat

I had a MR-12-II freeze up a long time ago in fresh water at about 35 degrees F. It could be that there is a difference between fresh and salt water for freeze-up, though I don’t have specifics on it (should be, actually). And, the MR-12 II has that external Venturi tube, exposed to the water...

50-54 degrees F should be no problem for any regulator. The problems occur when the water temp is around 35 degrees F, as the air can then come down to freezing, and cause some ice buildup as the regulator is operated. SeaRat

Below are the dive knives I have used over my decades of diving. I have one knife, on my right leg, accessible with both hands. In recent years, I’ve used it to cut monofilament fishing lines many, many times. The Wenonah dive knife (one with a button in the handle) is my current dive knife...

This one looks to be upside down in the photo. It also looks a lot like the U.S. Divers Company Champion Deluxe mask. SeaRat

Okay, here's my White Stag oval mask. Note the non-return purge valve at the bottom of the skirt. It does look somewhat like the Aquagom diving mask though. ;) SeaRat

I just looked at my White Stag mask, and the two are different in their details. So this was not the predicessor of the White Stag mask. I'll get you a photo of that mask a bit later. Merry Christmas! SeaRat