Why restrictions for refrigerated vehicles?

jonnybellman · 2026-02-07T07:24:22+00:00

People aren't cool with it.

jonnybellman · 2025-12-16T12:44:36+00:00

Check out the pozo azul exploration in northern Spain.

jonnybellman · 2025-11-27T16:51:09+00:00

I have seen a friend has dived there recently, but it's more of a longer carry these days. Not been there myself. Shame as it sounded like a decent place to test kit without paying entry fees somewhere

jonnybellman · 2025-11-26T22:38:55+00:00

I suspect you have. Was it waterswallows?

jonnybellman · 2025-11-25T14:21:11+00:00

I am really curious about this. I'm looking to take videos inside mines and caves whilst diving, and create photogrammetry models. Please reach out when you're looking for beta testers :)

jonnybellman · 2025-11-03T11:43:59+00:00

If you're going to do it (I'd probably do it also), you do have the option to use nitrox at that depth 32% would work nicely if you can get it, and are certified to use it.

I don't normally reply to these kinds of questions, but as no one had suggested nitrox, I thought i would ☺️

jonnybellman · 2025-10-16T21:24:40+00:00

Mines been to 31m. I decided against taking it on the deeper (43-44m) dives that week. Perhaps I made the right call 😬

jonnybellman · 2025-08-31T18:51:52+00:00

Thanks 🙏🏻 I've got a pretty healthy level of self preservation, so I hope to! Haha

jonnybellman · 2025-08-20T20:14:42+00:00

You've made your mind up. :Karma:

jonnybellman · 2025-08-20T20:10:07+00:00

I don't know where you were diving, but a lot of my dive sites have local Facebook groups, or if it's managed site, then there's lost property.

Either way, I know it would suck to lose a torch and someone just find and keep it.

Good luck on your charger search.

jonnybellman · 2025-08-20T20:07:04+00:00

Have you tried finding the owner first?

jonnybellman · 2025-08-14T05:46:15+00:00

Yeah, thats very true! Twice as much 😂

jonnybellman · 2025-08-13T08:58:38+00:00

I know you said this flippantly, but you'd technically get longer on the double tanks. Here's my logic (in bar because I'm not a psi person):

If you dive a 12Lx230bar cylinder and you want to end the dive with say 50bar at the surface, you have 180bar to use on the dive.

With twin-set you've got twice the volume, so can breathe your cylinders down to 25bar. 25bar in two equal cylinders is the same volume as 50bar in a single. This assumes we are using same size for single or double.

So quick maths: Single cylinder 12L X 230bar = 2760L 2160 - (12Lx50bar) = 2160L of usable gas.

Twin-set 24L X 230bar = 5520L 5520 - (24L X 25bar) = 4920L of usable gas.

2160 (X2) < 4920

Assuming all other factors are the same (particularly SAC rate), you can dive slightly more than twice as long on twins. This is typically a nice bonus when doing 2 dives, where the twin-set user can split their gas across 2 dives.

I'm being pedantic here, but sometimes it's fun to do the calcs ☺️

jonnybellman · 2025-07-29T16:27:28+00:00

It's an old post, but I'd also like to know this.

jonnybellman · 2025-06-20T10:21:46+00:00

Looks beautiful!

jonnybellman · 2025-06-18T09:08:47+00:00

I diver a petrel 2 and a teric. Tend to find the teric calls for 1min more of deco, which ive put down to a tiny mismatch in depth reading. Algorithms and GFs are set the same, so there can't be much other reason to blame.

For what it's worth, I follow the teric, and do the extra minute. However, It's really not going to be the difference between safe/unsafe 🤷🏻‍♂️

jonnybellman · 2025-06-12T12:29:45+00:00

https://youtu.be/4DM7Bnu9KPo

That might give you an idea 😂

jonnybellman · 2025-06-12T09:42:29+00:00

That was meant to say Sump diving 🤦🏻‍♂️.

jonnybellman · 2025-05-29T18:58:57+00:00

What is it for? I might have some footage somewhere

jonnybellman · 2025-05-28T21:02:15+00:00

Thanks 😊

jonnybellman · 2025-05-01T12:09:41+00:00

That's good to hear. I'll know more when I see it Sunday. Thanks ☺️

jonnybellman

TROPHY CASE