Search results

Yes, start with that top C/L grommet. Realize that with full JJ C/L's you'll get more buoyancy in your shoulders, affecting trim. Maintaining optimal C/L volume will be a key task as you build hours. Generally, less is better, except that with the JJ, you need a bit more C/L volume when...

Sure you do! You dive. Here's an unsealed Mk20 that after 10 years of religious rinsing after a dive, still has a line of damage due to salt crystals or floating grit that came in thru the ambient holes, stuck to the crevice between the piston head oring and the wall, and scraped away at the...

I don't believe that whistle is because the reg is unsealed. There is a very fine spring holding the stack of washers and HP oring in place under the seat. That thin spring is directly in the path of tank gas rushing in with each breath, and vibrates at an irritatingly high frequency. Remove...

FOAM Q-tips! Cotton Q-tips leave behind lint that will come back to haunt you. A lot of lint. But no. There's no easy technique, and it's messy, but you only have to do it every few years. Make sure to build/test your reg before you seal it. Yes, you have to remove/replace the piston a...

Been watching this and finally have to comment. Learned to dive my JJ in Florida in a 3mm and found exactly the same problem, tho' perhaps not as extreme. I didn't rotate vertical, just a bit head up. The threads above have contained all the nuggets: Aluminum 3l's will make things worse...

How about a generic argon reg?

Despite being up to page 4, the ratio of No to Yes has remained constant at 85/15 since the first half dozen votes. I guess folks aren't swayed by the more vocal "Hell, No!" crowd. Fascinating! Thanks, @Tassi Devil Diver !

I started the same way, and ended up slinging it, or more specifically, side-mounting it. I grew tired of the slight imbalance hovering in wrecks. When scootering, might be a whole different ball of wax.

With it now being 20+ years since Microsoft discontinued the .xls extension in favor of .xlsx, I have deleted the .xls version of the Optimal Buoyancy Computer from the thread. The .xls version did not have extensive protective formatting, and the potential for seeing erroneous inapplicable...

Not disagreeing with you, but would this not have been disclosed on the diver medical form that the member had to fill out to get certified? I've even been on deep dive boats and overseas where you had to fill out the form. Now if the guy lies...

See the Scubapro regulator owners manual. They are fairly clear in a table that the Mk25EVO, oxygen cleaned and with a Nitrox kit is good to 4350psi (!!) and 100% O2. The jump you have to make is from your Mk25EVO to a Mk25EVO Nitrox. They're all manufactured the same way. A Mk25EVO Nitrox...

No. I have a real concern about the ability of a diver to get reliable information from the average good doctor, who is simply out of his league when it comes to diving physiology. Yes, the doc could educate him/herself pretty easily using the template outline that USED to accompany the PADI...

No argument there, @Bigbella ! We are a country of laws. Hence, Viton. And yet, my JJ-CCR is filled with Nitrile orings whose canister regularly sees 100% O2. Still, the problem remains. There are not a few components that will autoignite above 1500psi in 100% oxygen at very modest...

How did this work out, @the_one_who_waits ?

The key is the first stage supplying your Cyklon or Jetstream. While the XStream first stage is milled with lubricants that are oxygen compatible, earlier 2960 & 3960's would have to be oxygen cleaned, which can be a challenge if there is silicone in their past. Lots of folks do it, and we...

TFX 179.5g T3 184.5g measured with AA mouthpiece. But I'm @Scared Silly that you care... You're right. I'll sell my T3. Should've done that right away. :rofl3:

So I had a Mk10 that I sealed with a DIY SPEC boot and haven't serviced for 10 years. It's finally showing some IP drift, so I'm going to service it soon. But I lied. While I didn't service the sealed internals, I removed, cleaned and replaced the yoke bolt every year. Just the yoke bolt...

If you actually tried the Omni Swivel fitting on your hose, you would be less concerned. When I compare the barbs and crimps on many imported hoses with the OmniSwivel repair, the hand-screwed fitting is actually more secure. But @Tracy has a point. While relative Intermediate Pressure...

Omni-Swivel male hose repair kit. Takes 5 minutes. https://www.divegearexpress.com/omniswivel-hose-repair-kit-3-8-24-male I've done exactly this with Atomic Comfort Swivel hoses. They're great! Just too long.

A nice problem to have for Atomic, if they don't piss too many people off. I sure love mine. It's definitely the smoothest reg I've ever breathed.