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Anyone know the specifications for the battery compartment o-ring for the old US Divers Scan 4 air integrated dive computer? Size/recommended material/hardness? Thanks

Please note that this is meant as a DIM (Did It Myself- some will probably say DIM-witted) post and is not meant as an endorsement or recommendation for anyone else to do the same. Pressure vessels are inherently dangerous, and essentially none of the components used in this project were used...

When would you say that K-valves became the clear standard in the marketplace and replaced J-valves to the point that you would have had a hard time buying a new tank with a J-valve? And when would you say the same thing about plastic cylinder valve knobs replacing metal knobs (on even...

Background: I have 3 old dive computers that I still use, but are no longer supported by the manufacturer (ie- they no longer supply battery kits). My LDS changed the batteries right before a recent trip, but did not change the o-rings for the battery compartments because they could not get them...

I had a dive buddy Don who started "skin" diving as a teenager in the 1950s. He still had his original gear with a double hose regulator, doubles without even a backplate- just canvas straps, oval black rubber mask with no nose pocket, and yellow gum-rubber Voit Duck Feet fins. He serviced his...

I've been away from Scubaboard and diving for a while, but hope to jump back in to both. Looks like the forum is really thriving. According to joewr's reckoning in an old thread, I was the 8th person to join Scubaboard on 9/16/2000. Now the stats say Scubaboard is up to 219,754 members! I've...

Aqua Lung and Scubapro both replaced my legacy regulators under warranty. I have been away from Scubaboard and diving for a few years. Much of my gear dates from the 1990s. I have an upcoming dive trip and took my Sea Quest (since acquired by Aqua Lung) Air Source (original version) combo...

The Nov/Dec issue of Undersea and Hyperbaric Medicine has an interesting study that takes another look at "forward" vs. "reverse" dive profiles. (To see a summary and discussion of the Smithsonian workshop they’re talking about go to...

Must be at least 35 years or so ago now, I remember spending a day snorkeling in Crystal Lake outside of Decatur, Arkansas. I had so much fun, the experience was one of the reasons I went on to scuba. I don't remember the lake being very big or very deep, but I do remember it being crystal...

Any of you Scientific Diver type swampers headed to Aquarena Center this Sunday 8/31? I plan to be there about 10:30AM. Hope to see you, Bill http://www.continuing-ed.swt.edu/aquarena/diving.html

Howdy All: In case you missed the thread, there's a plan to get together at Clear Springs Scuba Park in Terrell this Saturday 8/16 (See "Bench by da Beast" thread at: http://www.scubaboard.com/t33830/s.html ). So far looks like we have Dee & Beast, Zagnut, sealskin98, ScubaTexan...

Clear Springs Scuba Park needs your help, and I’m hoping that I can count on you Texas Swamp Divers to pitch in. As you may know, the CSSP property has been in owner Debbie Cameron’s family for generations. The lake on the property (an old flooded quarry) has clear water and is full of life so...

Howdy All: Divers often travel to tropical locations where they might be exposed to mosquitoes carrying malaria, West Nile Virus is spreading across N. America, noseeums are a constant irritant, and who likes ticks and fleas? Most divers will likely need an insect repellent at some point...

Hi All: As you may know, many airlines have an official policy to charge scuba divers an extra $80 each way ($160 round trip) if they have any scuba gear in their luggage- even if their luggage otherwise meets the airlines' free baggage allowance. I wrote an article about these silly...

We had a nice day at Clear Springs Scuba Park yesterday. I got to meet blue32, Bill Walton, TruckDiver and wife, and ScubaTexan (missed Diablo65). Vis was maybe 10-20' (lowest I've seen at CSSP), and the water was a nice and warm 84°F above the first thermocline. CSSP is the best dive in N...

A buddy (Campana from RSD and Diverlink- he should be along soon) and I headed out to Clear Springs Scuba Park in Terrell, Texas for their 1st annual Polar Bear Dive today. We met up with Texas Mike, Corsair, and Phantom. Air temps were just above freezing. One fellow thought he saw...

Hi All: I plan to head down to San Marcos to dive Spring Lake at Aquarena Center this Sunday 9/9. I haven't heard back from the new Diving Coordinator yet so my plans aren't firm, but I hope to get there mid-morning (10-ish?) and dive until I'm done. If you're current on your authorization...

Sorry for the short notice, but I'm headed to the new Clear Springs Scuba Park in Terrell, Texas tomorrow (Sat. 8/4, ~9AM). I'd be more than happy to meet any of you there! Let me know if you can make it. Bill

Hi All: Those of you who know me know how I feel about spam. I received the email spam newsletter below today from cyberdiver.net. I had never visited cypberdiver's website, subscribed to any newsletter, or even expressed an interest in hearing from them. The only places I give out my...

Short version: DAN insurance does cover recompression treatments for missed deco stops in asymptomatic divers. Long version: In the discussion on Mia Tegner's tragic death after apparently surfacing and then descending to complete a missed decompression stop (see...