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Thos thread probably isn’t a good place to debate this, but plenty of people have become ill or even died from bad scuba air that was pumped by electric compressors. There have been specific examples where a truck unknowingly idled outside of the intake while the compressor is running. I have...

Ugh, I just knew it would be that one… The MCH6 cartridge is pretty much universally considered by everyone – except maybe those who actually sell MCH6 compressors – as being too small to be useful. As a duplex cartridge, meaning without CO protection, they last maybe a dozen tanks. As a...

Funny you should ask… :-) https://scubaboard.com/community/threads/forensic-detectors-carbon-monoxide-co-detector-review.622086/

Funny, that’s the part that is interesting to me! :) Mainly because, assuming the compressor does not actually turn itself into shrapnel, the filtration is the only thing between you and death from either CO or lipoid pneumonia. Dramatic, maybe, but CO at depth is *much* more deadly than on...

Alkaline batteries leak because of the design of the battery. The metal casing is literally consumed as part of the chemical reaction. So when you leave a battery in a device that never turns itself completely off (like a dive computer or digital camera or any other modern device that doesn’t...

I can’t tell you how frustrating it was to have this pop up as a new (updated) post, read through 10 pages of posts about the back-and-forth tussle over this ship and then to find out it’s going to be scrapped anyway. Seriously: is there a single person who thinks that this was a better...

I’ve tried to make this point before. People say the same thing: it’s always the same reasons, we know what they are, why should we rehash them? What have we learned? Do these people not have children? or coworkers? Do you know how many times you have to tell someone about the consequences of...

The photos aren’t the clearest, but you can make out the E9791 marking. That is the special permit (used to be exemption) for PST high-pressure steel tanks. If so, then yes: it’s a PST tank. The photos did not seem to include the fill pressure, but given the visual neck size I would bet big...

I would mention it could matter. People who exhale through their nose tend to have their mask fog up. You might not notice it in warm water, but in cold water it is much more noticeable. The other annoying thing is: when you breathe through your nose you tend to push the water out of your mask...

My exact feeling about Sherwood first stages from before 2000 or so: the ones that look like unbalanced pistons but are actually balanced. (Well, let’s say balanced-enough.) There’s like 3 o-rings in the entire thing. And unlike the Mk2, they‘re environmentally sealed. (OK, not sealed per se...

I can’t give you any numbers, but I can tell you this: rebreather divers who dive on helium have to dump their loop from time to time during deco. The helium, and I would imagine nitrogen, that they are offgassing starts to push their maximum PO2 lower, because the loop is no longer pure O2...

I happened to be re-reading this and saw that no one addressed the zodiac question. So I’ll add some details as I remember them. Not all dives started on the zodiac. If the boat could tie off near the reef or wreck, we just giant-strided off the boat, But if I remember correctly, they may...

Clever! I had a similar idea, but *much* less sophisticated: https://scubaboard.com/community/attachments/wheels-png.723914/ A dozen 1-inch rubber wheels. $12 plus a scrap bit of board and wood screws. Works well enough. I chose the height of the wheels and distance between the rows such...

@Jfinch An excellent question. Keep thinking and asking! The incidence of death from equipment failure in scuba are extremely low, especially in the recreational world. I personally have never seen even an incident that prevented gas from being delivered to a diver. Therefore, again...

I’m sorry, that tank just sold yesterday. I got delayed updating this thread (Field Day was this past weekend!). LP121’s are the only ones left.

No charge. And yes, I tipped them. Both immediately to the guy who did the repair and jointly at the end of the trip.

I was not on the Emperor Elite. I was on the Emperor Superior in 2018. I believe it has been refurbished since then, so my information probably isn’t even relevant for the boat as it is today. So I will mainly focus on how I felt about the company and liveaboard experience in general with...

First of all, getting a bank bottle to a cold 4500 is a challenge. You’d have to fill it to nearly 5000 psi hot, and that’s quite hard on the compressor. So your 444 cf bank bottle @ 4500 psi ends up becoming a 410 cf tank at 4200 psi. Keep that in mind. I could break out the Excel...

Not true: I did a side mount dive when I was down there this spring…. I think it’s a perfectly valuable tool. It’s just a tool I have not yet grown enough to need.

You can’t do that. Because the bottles are separable, you actually have to think about what would happen if you lost one or the other. In other words, you have to be able to handle the loss of either your heavy tank or your floaty tank. That means you need to be even more overweighted, plus the...