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Oh, that's very good to know. I have a ton of 1/4 BSPP fittings for my booster setup, so this should be easy to confirm...

I’ve looked into this before, my conclusion is that they don’t use proprietary radio links, just Bluetooth - which would let them use the FCC validation of the Bluetooth SoC that they use, rather than having to submit everything for testing. In the Eron manual, the only wireless transmission...

What are the challenges you face with locating a site on the surface (presumably with GPS) and then dropping down onto it? What kind of depths are you working with? What level of accuracy is required (10s of meters, within a meter)?

I absolutely agree with the sentiment, but it’s worth mentioning that a Doubles Primer doesn’t really teach you about managing failures. Yes, you learn to do a valve drill and manipulate the valves, but practice failures and failure resolution is only covered in T1/C1. Until then, you’re only...

If you do work out what the thread is, I'd love to know!

Check the reg but also the hose. Most HP hoses have a form of flow restriction built in - the male end of the hose only has a very small hole to allow gas through. If that’s partially blocked, it would cause the issues you describe.

It could be!

I think the course is incredible value as-is, since it already includes recordings of all the sessions. I wouldn't change the current format - if someone wants to buy the course, not attend, and then look through the recordings, I feel like that's on them.

Interesting...lack of confidence in the BOV? Or just the inherent love for the necklace (which I get)? At the risk of derailing the thread, as a newer CCR diver now thinking about BOVs, I'm curious why no-one seems to run a BOV + long hose, but with the long hose in one of those 'releasable'...

For your use-case, a 2-piece 7mm open-cell wetsuit would honestly be a better fit. Drysuits suck for extended surface use (in my experience) as it's quite hard to get consistent loft of undergarments in the places you need it. Sure, they are warm-ish, but (as you've discovered) you have to wear...

Based solely on the patent filing, the BOV is functionally just turning the upper part of the loop into a double-hose reg, and cuts out the scrubber and counterlung. If the loops was entirely flooded, presumably purging/free-flowing the regulator in BOV mode will clear the inhale hose, and then...

Something that I don’t feel has been mentioned in this thread is the option (and importance) of practicing oral inflation of the BCD. Especially in a single tank rig, you can plausibly have a double buoyancy failure if you lose your only gas source (for example, tank valve isn’t open on...

FWIW, I have a Tecline Teclight and use it with either the small canister, or an Ammonite battery that I also use for suit heat. I think it’s a very underrated light, the ergonomics of the light head are excellent and the combo spot/flood is a good combination. It makes for a surprisingly good...

I don’t have direct experience with the 710, but I do have a DGX 1000-6 and I’ve used it extensively as a primary around the PNW. It’s a great light and I’d have no hesitation using it. If you want to save a little money, the Sofirn SD06 has (in my opinion) a better beam and it’s a little...

Have you looked at the Heinrichs Weikamp computers? I have the 'Bottomtimer' from there, and it's an exceptional piece of hardware. Really bright display as well. Their 'real' computers (OSTC 2, OSTC Sport, OSTC 5) are all open-source, you can view the code here. OSTC+ is rated to 120m, OSTC 5...

I have the same booster. The QD for the inlet (at least on mine, from the factory) is a Milton V-type (European NW 7.2). Those are easily obtainable from Amazon or Harbor Freight.

Yeah, that seems about right. The unit cost on neoprene seals are something like $50 for a neck seal and $60 for a pair of wrist seals (at least in Canada), so you're something like $200 for all the labour, which sounds about right to me.

I’ve been using the smallest NRC tec-booster, zero complaints. The design seems very well optimized for boosting oxygen, and it’s nice that you don’t have to regulate the input gas down.

I have a drawer full of unused (and useless to me) Apeks yoke fittings, from regs that I’ve converted to DIN. For the cost of shipping from BC, I’ll send you a new one.

From the CCR-F workbook: