|
Post by cnotthoff on Jan 19, 2020 13:42:48 GMT -8
Charlie, is that why I cannot find a snorkeling vest with a CO2 inflater? John yep
|
|
|
Post by vance on Jan 21, 2020 8:35:38 GMT -8
I think you’re right on the money, Charlie, although Mark’s point is well taken. Perhaps we can talk about something else now. I am going to start a new thread on a different topic now. You did get a ball rolling here, though.
|
|
|
Post by crabbyjim on Feb 4, 2020 7:46:35 GMT -8
|
|
|
Post by SeaRat on Feb 4, 2020 8:43:27 GMT -8
JIm, Yes, you can get them on E-Bay (I have a couple), but I needed a new one for my wife, and no new CO2 vests were available at my LDS. John
|
|
|
Post by cnotthoff on Apr 2, 2020 15:30:02 GMT -8
When it comes to divers working on their own regulators, this is the kind of thing that informs my opinion. For every diver who is mechanically competent to service life-support equipment, there are a few more of the kind that would do this to a regulator. IMG_1807 by Charlie will, on Flickr There's probably more than one thing wrong with this setup, but what's the biggie? I came here for an argument, not getting hit on the head lessons. Charlie
|
|
|
Post by scubalawyer on Apr 2, 2020 15:47:33 GMT -8
There's probably more than one thing wrong with this setup, but what's the biggie? I came here for an argument, not getting hit on the head lessons. Charlie Folks will argue additional failure points and the age old discussion regarding hose protectors, but if it works, what the H E Double Toothpicks.
|
|
|
Post by cnotthoff on Apr 2, 2020 15:51:31 GMT -8
There's probably more than one thing wrong with this setup, but what's the biggie? I came here for an argument, not getting hit on the head lessons. Charlie Folks will argue additional failure points and the age old discussion regarding hose protectors, but if it works, what the H E Double Toothpicks. Nope
|
|
|
Post by nikeajax on Apr 2, 2020 16:04:49 GMT -8
Charlie, there're too danged many swivel-turny-things! Shouldn't they be kept to a minimum, say use them only on your primary air source?
That thing looks like one of the creatures from the 2016 sci-fi film, "Arrival"!
JB
EDIT: shouldn't you use them on LP ports only?
|
|
|
Post by herman on Apr 3, 2020 2:45:58 GMT -8
Assuming the one in the HP port is rated for HP (and I'm guessing it's not but they do make them), nothing really "wrong" with it. The DIR folks would go nuts about the added failure points- 12 by my count but nothing technically wrong with the setup. I wouldn't do it. I also don't care for "hose protectors".
|
|
|
Post by SeaRat on Apr 3, 2020 10:34:53 GMT -8
Assuming the one in the HP port is rated for HP (and I'm guessing it's not but they do make them), nothing really "wrong" with it. The DIR folks would go nuts about the added failure points- 12 by my count but nothing technically wrong with the setup. I wouldn't do it. I also don't care for "hose protectors". If the DIR folks were really interested in minimizing failure points, they would dive doubles or triples with a single post, with a Mistral regulator, and nothin' else. But of course, that's exactly how JYC and his crews dove the Brittanica. I have an original Calypso regulator set up for DIR, with a SPG, LP inflators hose, and a second generation Calypso second stage as a "safe second." The original Calypso is on a 8 foot hose. John
|
|
|
Post by vance on May 11, 2020 13:33:57 GMT -8
I have an Over-Pressure that is missing parts. I made a new lever carrier for it today, just for fun. It's not beautiful and I wasn't sure it would work, but it does!
|
|
|
Post by nikeajax on May 11, 2020 14:13:10 GMT -8
|
|
|
Post by SeaRat on May 11, 2020 16:28:05 GMT -8
I have an Over-Pressure that is missing parts. I made a new lever carrier for it today, just for fun. It's not beautiful and I wasn't sure it would work, but it does! Okay, this is great! Now get some PVC tubing, and run a tube from the outlet to the mouthpiece, with about six inches more than needed for the mouthpiece attachment. As you know, the original Overpressure Breathing regulator had a metal mouthpiece, but apparently yours is now MIA. That's not really a problem. What you can do is use a USD curved or straight mouthpiece, make a PVC adapter for the intake wagonwheel, and a metal tube headed to directly in front of the mouthpiece opening. Take a look at the Scubapro 109 tube opening, and model an opening on those dimensions. The end of the tube needs to be blocked off. And this metal adapter in place of the wagonwheel needs to accept the tube coming from the regulator inside the intake hose. It also needs to be open so as to create the Venturi in the hose, with air being sucked up from the regulator beside the tubing too. If needed (it really isn't) you can modify a mushroom to fit around the tube, and provide the non-return feature for the intake hose. The other side would have a regular USD/Voit wagonwheel, and the exhaust system is exactly the same as the Mistral. Now, why do this? Well, I'll go back to the words of Fred Roberts in Basic Scuba. He said, Remember, this was in the late 1950s and early 1960s, when divers were not used to a "gush" of air from Venturi action, and were used to having to comnitually inhale to get air. The concept of the Scubapro 109, with air being piped directly into the mouthpiece, or even my newly acquired White Stag DEEP II, with a hole aimed directly at the mouthpiece from the second stage, was foreign to 1950s divers. They thought that "breathing too easy" caused them to use air more quickly, and had no concept of work of breathing on a diver. For this reason, I would encourage you to try the hose-within-a-hose concept, and return this DX Overpressure Breathing regulator to its original concept. IMG_1256 by John Ratliff, on Flickr My DX Overpressure Breathing regulator, after a dive. John
|
|
|
Post by vance on May 11, 2020 17:36:37 GMT -8
I'm considering it. The mouthpiece part is a bit of a problem since the tube needs to be suspended in the centerline of the mp, and a non return has to be figured out. These aren't insurmountable problems. My PVC mp might be the perfect platform!
|
|
|
Post by vance on May 12, 2020 16:52:22 GMT -8
Got the mill today. Gonna make some partz.
After I clean, and adjust, and mod, and get some tooling. And more tooling. And more tooling. And more mods.....
|
|