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Looking for a 2l steel cylinder to use it for O2 on a rebreather. I can trade for one of my 3l if someone wants to swap.

SF2 Rebreather for sale

I haven't personally come across flat bottom steels or round bottom aluminum that I can think of so I'd suppose if they exist they are less popular because of ease of manufacturing. Also, a steel tank that had extra material to make the bottom flat would result in an excess of material and mass...

The shape is an artifact of the manufacturing process. Because of the nature of the materials steel cylinders are made using a deep draw process, aluminum use a backward extrusion. The former results in a rounded bottom as a result of the manufacturing process and the latter gives a flat bottom...

East Coast Divers in Brookline are typically quite accommodating for things like this, but the pool is closed with all the Covid-19 stuff going on.

As a side angle, as long as the fin is decent enough and powerful enough I'd say one of the most important things to consider is how quickly can you get them on and off your feet. If you are dragging a diver out the water and you need to remove your fins first can you do so easily. How quickly...

Couple of pieces of feedback. First not being able to find your "butt valve" is a bit of a problem. Not sure if you are diving your own gear or rental gear but gear familiarity is key. Finning a little is OK, but what probably happened to make your situation worse is the effort of finning...

I don’t think there’s much (if any) difference. I think the FX 100 is just Faber’s HP100.

I agree with Neilwood- consider a drysuit. It also acts a potential back up buoyancy device and can be easily adapted for different water temps by varying undergarment layers. If you decide on a wetsuit route I’d say if in doubt go thicker. If you are too warm you can always let more water in to...

HP100s are good versatile steel tanks. Should be plenty of gas for most dives. The strategy of getting LPs and overfilling them doesn't really buy much in my opinion. Even if you can only fill an HP100 to 3000 PSI then you'll still have 87cuft of gas.

I'm not sure if the specialities cross over in this regard but my advice would be to focus less on the Master Diver Certification and more on acquiring the skills and experience. In all honesty I think the PADI Master Diver rating is pretty much a card that doesn't get you anything aside from...

What's the current thinking on the best trimix analyzers? The two that jump out seem to be the AI Trumix and the Divesoft. I also see an ATA model out there. Can anyone net out the pros and cons and offer a recommendation?

It was 80 degrees F on Friday. I was comfortable for long dives in a 5mm. Others wore 3mm. Some might tough out a short dive without one but it will likely be colder in Feb.

Make three loops of bungee then tie a knot. When you wear thick exposure pull out two loops. When you wear something thinner pull out three loops. It's quite a simple concept. I use this to allow me to vary between a drysuit and a swimsuit. Sent from my iPad using Tapatalk HD