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So you've finally got an ultrasonic! Maybe a $150 import that you'll replace in 13 months (because the warranty is 12), or a $600 used Branson that'll last for years, but either way, you're now in the big leagues. But you don't have enough money for two. You've got your 4% phosphoric acid, or...

With the transition to Poseidon Diving Logistics, LLC from the previous company, a significant amount of data was lost regarding our US service technician and Service Center pool. Please chime in in this thread, with your shop name and contact info if you have currently certified Poseidon...

Poseidon Diving Logistics, LLC, @PoseidonDiving.US has been given responsibility for Poseidon regulator and rebreather distribution, service and training in the US. My name is Robert Singler, and I am Poseidon's Senior Technician Instructor Trainer for the US. We want to welcome you back to the...

As many of you know, I find the steel double hook pick to be one of the most useful picks in my shop. It's mandatory for my Seminars. How to use a Double Hook Pick Much more dangerous than a brass pick, it can nonetheless remove the oring from a bcd hose end without scratching the groove...

It's amazing how often the old G250 comes up in discussion regarding its smooth performance, despite being more than 40 years old! I think it's time for another bruising debate about the best second stage! But to avoid (okay, minimize) the thread hijacks, I'll restrict my comments at least...

You may have run across that really irritating whine in your Mk25, and Scubapro has long fought that issue with a variety of trial fixes. But until today, I had NEVER run across it in a Mk10. Just finished a standard overhaul and used an OEM Service kit 10.500.045, two shims and a -| seat...

Interested in getting started with U/W photography, but put off by the cost? Consider starting with this system! $3,800 New; for sale at $1,300 $1,100, postage included (CONUS). Complete package only - not parting out. I'm just back from an Anilao muck diving trip, and it was a great rig...

So I just had a conversation with a guy from Australia who is BUYING A SHOP, but Scubapro won't let him attend a manufacturer's certification class until he's serviced 100 regulators. Pretty interesting, compared to the US of A, where 1/3 of the participants at every Level I Scubapro seminar...

Autographed copy in like new condition. Paperback - spine is not even creased. No inside marks or underlining. DGX list price $49.95 Yours for $20 + ~$5 Media Mail postage

Jeff Bozanic's classic textbook, 2nd Edition, 2010 Excellent condition; no marks, notes or underlining; spine undamaged $45-$179 on eBay $30 + Media Mail postage $4-8

This will announce the next in our little series of evening discussions about regulator minutia. Tuesday, October 3, 2023 from 6:30pm to 8:30pm Pacific Daylight Time (9:30 to 11:30pm Eastern). https://us02web.zoom.us/j/87484585294?pwd=MER1L0RhTlFVNno1UmIrZUpwOWJFQT09 Or open up Zoom and enter...

Why does my Shearwater cloud show GF99 continuing to rise for two minutes after I surface? The log apparently clocks the "end dive GF99" the moment my depth hits zero. But the graph shows it continuing to rise before offgassing makes it fall. Which is correct? The logged end dive GF99 is not...

For Sale: New Zeagle Zena with Grape front panel, spare new black front panel, expandable mesh front pocket, Miflex Inflator hose and Zeagle Inflator - $550 and free shipping. This bcd has never been wet and is new and unused. We bought an extra grape (purple) front panel for looks (a $70...

Well, it's out. I had the pleasure of listening to Dean Garraffa introduce AA's new second stage (and tweaked T3 first stage), and I can't wait to get my hands on one. Mr. Garraffa was with Scubapro back in the day, and along with Doug Toth (who designed the D400), they came over and formed...

As discussed previously here Scubapro O-ring Sizes my custom order of EPDM Duro 90 orings that  might match the 01.050.317 in the new Mk19EVO has just arrived from Precision Associates Inc. They are sized at 1.905mm C/S x 2.591mm ID. Hooray! The Min Order Quantity plus the custom run for an...

Who can tell me what this is? I've been a SP tech for a decade and supposedly have all the schematics. Never seen this before. It was paired with a Mk11. Looks like a Frankenreg maybe combining S innards with an old case? Europe? Anyone have a schematic?

(Split off from another thread where the content wasn't relevant)... I brought my sealed, recently serviced T2 and T3 on my bucket list trip to Raja Ampat two months ago. As is my habit, I ensured that both first stages had crisp lockup after service and sealing with Tribolube. The trip was a...

The XStream service manual goes into O2 cleaning in some detail, and the reg is certified for 100% at 3000 psi. Yet the XStream's predecessors have been used for accelerated deco with 100% O2 for decades, and the company markets a Viton service kit. So here's my question: does the absence of...

Invited by a co-worker to join a group of experienced divers who had booked the entire Arenui (thearenui.com) liveaboard. Raja Ampat had been on my bucket list forever, and the invitation tipped my wife and me over the edge. Ridiculously expensive, it promised boutique service, a beautiful...

You gotta love this! Shearwater is touting a new capability called DiveTrak in collaboration with Solardyne. So here's the state of the art photo: And the first stage that the new equipment is demo'ed with? A 40-year-old Scubapro Mk10!!! :rofl3::rofl3::rofl3: Old guys rule!