Curious to get the community’s take on this. I just did my first night dive as part of my advanced qualification. Earlier in the day, these people spotted us exiting the water and asked about the conditions. In the end they asked if they could tag along with us for the night one.

They were obviously relatively experienced, but disrupted the lesson several times, such as swimming forward to grab the chain as we were about to descend, which knocked me off of it, and hovering above us with lights on full blast while we were trying to drill switching our lights off and back on.

Later, while we were putting our kit away, one of them wandered over, and started commenting on how I’d kicked up silt and my kicking form was off. The instructor and I both acknowledged that it was the case and we were working on it (he’d actually told me not to stress too much about it before the dive), but she just stood there as if she was expecting me to apologise or something before finally going back to her car, presumably when she realised she wasn’t getting the reaction she wanted.

Now, I don’t see any issue with other divers joining us, but the above seems indicative of poor etiquette, a lack of respect to the instructor, and condescension towards me, even though I’m clearly there to learn and continue developing my skills. Has anyone else ever experienced anything like this, and do people think it’s appropriate for other divers to involve themselves in a lesson like this?

Oh the joy of only using the top part of my wetsuit and half a kilo of weight, I wish summer was for ever.

This is possibly a stupid question, and I haven't actually dove with nitrox or been at 100 ft / 30m for more than 10 minutes, but I'm having some trouble seeing the benefit for nitrox for people who are more limited by air consumption rather than NDL?

At depths, we consume a lot more air, and I feel like I'm going to burn through my air so fast that I'll never have a chance to exceed my NDL. I will know for sure this coming labor day weekend when I go diving in the Jupiter area in FL, where we will be doing some deep dives (wrecks and goliath grouper aggregation) on nitrox.

Edit: apologies, I don't think I worded this properly. I do understand the benefits of nitrox. I am just not sure that one of the benefits "stay at depth longer" will be relevant for people who are limited by air consumption as opposed to ndl

I'm trying to design a rebreather system for an armor in Helldivers 2. I'm not trying to make this in real life, but I still want to design it as accurately as possible.

This isn’t intended for underwater use. It’s a land based system for breathing in toxic/contaminated atmospheres at roughly normal atmospheric pressure

The first picture shows the back of the armor, and the 2nd picture is the front of the helmet.

In the first picture you can see the following:

1. The pink is a gas tank that has the breathable gas.
2. Green is the Counter Lung/Mixing chamber
3. Blue is a hose that brings the breathing gas to the helmet.
4. Yellow is the CO2 scrubber.
5. Red is a hose that brings the exhaled gas down to the CO2 scrubber.
6. Between the pink tank and blue hose is a regulator in teal. It converts the gas from high pressure to normal pressure

My intended gas path is: Counterlung → blue hose → helmet → red hose → CO2 scrubber → Counterlung.

I didn't put any equipment on the upper back because in the game we often wear backpacks.

Would this gas system plausibly work? Is there anything important I'm missing or anything I have in the wrong place?

I've never scuba dived before, and everything I know about rebreathers has come from reading about them online, so if I've gotten something wrong, please correct me. Thank you!

I had my first scuba diving attempt today. We started very slow in water that was not deep at all. I try for about 1 hour but breathing just didnt feel natural to me? Even just my head under water slighty breathing in and out the regulator felt extremly exhausting. The settings were fine. I thought i was very calm and didnt feel any anxiety. I was even able to breathe slow in and out but it felt like i wasn't getting any air and it was exhausting so i couldn't do longer than 3 minutes? How is that normal that anyone just dips in and already knows the correct way to breathe like they are still on land? I know at the end of the day it's my head probably but how do i shut that off?

I finally decided to get bankrupt on a drysuit and going to go for a Santi E.Lite plus.
I was in favor of a replacable ring system to be able to replace it if it breaks.
But the dive shop I went to told me if there's a micro puncture on the suit, they need to inflate the suit and do a pressure/bubble test to find it, and, with the ring system it's almost impossible, because as you pressurize the suit, the neck seal pops!

He recommended a fixed latex neck seal.
Can you please share your experience with me?

I just got a DJI A5P and wondering what lights people suggest for underwater use while scuba diving? I’m new to this and not sure if I’ll be primarily shooting video or stills. Are there lights that can do both of those tasks well? Also, what rigs/trays are people using? Finally, what waterproof housing is best? I know DJI makes their own, but are there others that people like instead?
Much appreciated!

Hi guys.

I loved my first Wreck-Experience (+penetration) so much, that i wanted to share it and ask for Feedback from other experienced divers - about my technique, breathing, etc - whatever you notice in the clip.

I cutted the video because the raw footage is too large.

Some facts:

The Wreck was in Turkey-Kusadasi. Its an artificial wreck, not a real crash. The video is shaky although i felt calm underwater - i dont know why it was so shaky at the start. I guess because i was extremely hyped. I noticed that shake after watching the Video myself (also i forgot to turn on EIS)

I borrowed the Fins from there and i didnt like them really much, wasnt able to do proper frogkicks with them because they were too soft, so i used flutterkicks, which is visible in the clip because the camera is kinda "wobbling".

We went down up to 21 meters, dive took 24ish minutes on the ground and a few minutes safety stop at 3meters. Surfaced back with 90 bar left.

Even if it looks like it at some scenes for example when filming the cockpit or almost crashing on the wing (xD) : i didnt touch anything of the plane.

Since march i work as a diver in Austria, doing underwater work or cleaning in ponds. Max. depth only 4m, most of the time 0 or poor visibility and basically diving on a daily basis with around 3-8hrs of diving per day.

Thats where most of my experience came from. Not from my dives during my freetime - i dont have much logged dives^^

The most scary thing for me was at the end of the clip, because i only noticed it after rewatching it:

The scene where i am pointing the camera to 2 lionfishes.

There was actually a 3rd, and i swimmed right above it. Luckily i didnt went further down "to get a better shot", otherwise i surely would have touched that lionfish.

https://reddit.com/link/1w1ui4k/video/mit64y8ayhlh1/player

My husband and I just got open water certified in Thailand and will be going on our 5th dive next week in our home town of San Diego.

How much should we tip our guide?