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This one looks to be a swimming fin for those in pools. It looks too short for actual use in open water. SeaRat

Well, I cannot answer about the fit of the wet suits either. But to give context, the Haenyeo (Korean: 해녀; lit. sea women), have been diving for centuries. They started out with goggles and white swim suits which did not provide much warmth. So they are inventive women who take whatever they...

Okay, I'll chime in here, as I have been a BM diver for decades, and at 79 years old, qualify for being an old fart (both, the old and the fart thing). I have in the past routinely walked down at High Rocks on the Clackamas River some rather steep terraine, and walked out downstream too. I...

Here are three photos of me diving vintage, using my Mossback Mark 3 double hose regulator. This regulator is an updated DA Aquamaster with a brand new first stage, which allows three low pressure ports and a high pressure port for my SPG (submersible pressure gauge). These were taken by Sid...

Well, I’ve been working on it all through the 2024-25 winter months, and it is at a Beta Reader (also a PJ) right now. It’s too long, and so I’ll be sending it to an editor in a few months, then trying to either find a publisher or publish it myself. Thanks for asking. SeaRat

There are two kinds of back pain, the pain caused my muscle cramps/overuse and pinched nerves caused by the disc herniating. The people advocating execise above are focusing focusing on the muscular issues (poor core strength, leg strength, etc.). But realize that there is the other component...

Okay, I’m going to chime in here. First, and foremost, don’t take advise from ScubaBoard about your particular situation (exception, DDM). If the docs don’t think you should dive, don’t dive. 150 beats per minute is quite high (from a former USAF Pararescueman and EMT Paramedic). Get...

You probably have a slightly stuck duckbill valve in the exhalation portion of the regulator. This regulator should have very little exhalation restance. If the duckbill valve isn’t stuck hard to the box’s exhalation horn, gently pull it out and spray it with silicone grease. If it is adhered...

Before you dive that DA Aquamaster, at least take the hoses off, take the mouthpiece off the hoses too, and wash them inside and out. How? Well, I simply use soap and hot water, and a bottle brush to go inside and twist it around so as to clean between the convolutions. They tend to stay damp...

How about a video? I call my new technique for underwater swimming the “Sea Turtle-Dolphin” technique, as it combines a forward unit and the dolphin kick for efficiency. Note that I can maneuver effectively, which. I cannot on the Aqueon. By the way, the first generation forward unit is...

I haven’t used the DOL-Fin X-15, but like the concept. I bought my original Aqueon in the early 1970s, and have had it ever since. The Aqueon is fine for surface swimming, but has one overiding disadvantage in that it comes up too high on the torso, and so inhibits any bending forward, such...

I'm going to start out with fins. The first is a pair of fins I picked up while I was into designing fins, and this was really different. SeaFinMods2 by John Ratliff, on Flickr This fin blade originally did not have the spring there; I put them into the fin. Without the springs, the blade...

I’m pretty sure this isn’t a piston regulator, but an update to the Conshelf design, and from my memory done the same internal parts as a Conshelf (balanced). SeaRat

I had a steel 80 cubic foot, stamped for 2475 psig fill, in the late 1970s. It was a lengthened steel 72. ‘Don’t know the latest date for a steel 72 though.

I took a loot at E-Bay, and there are a number of Dacor Pacer regulators out there, including yours. One thing about both piston and diaphragm regulators is that the seat doesn’t wear with age, as there is no pressure on it. That means that if a Dacor Pacer regulator was put out to pasture 30...

I think I have some Pacer information on my upstairs computer (I’m on my iPad right now). If so, I’ll post what I can. I have been using Dacor equipment for a long time, have their Double Hose regulators (R-2, R-3 and R-4/Clipper), along with my Pacer and several more up-to-date Dacor...

There is apparently a brand new vintage scuba shop; take a look. https://www.vintageaqualung.com/online-store/Cylinders-&-Valves-c168264574 SeaRat

Call Dan at Vintage Scuba Supply and see whether he has any yellow USD hoses left. He used to carry the yellow ones. https://www.vintagescubasupply.com/shop/hosesparts SeaRat

Here are my Dacor regulators, all of which are ready to dive. Dacor Double Hose Regulators by John Ratliff, on Flickr The one on the left is actually a Clipper that I converted to an R-4. IMG_0604 by John Ratliff, on Flickr Here is a Dacor R-3 Dial-A-Breath regulator. It has a small...

This is perhaps the definitive thread on the Dacor Clipper regulator. https://vintagescuba.proboards.com/thread/5672/dacor-clipper The Dacor hose/mouthpiece system is made out of a rubber that deteriorates, and doesn’t fit any current hoses. So to get this regulator (yours) an entirely new...