Does anyone have an ali40 for sale, I'll pick up a new ds4/atx40
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Rocking horse poo mate second hand. Keep looking but most I know of have bought new. Funny thing is usually there more expensive than an ally 7.
It should be at least as good as your primary setup, which is a 12L cylinder, with an Apeks DS4/ATX40+ combo...
You can get even more benefit by connecting the two together using a manifold and then getting some training in how to fully explore the 30m "with just a smidge of deco" envelope...
Oh. bugger. Just checked the calendar.
I appear to have peaked a day too soon...
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Let's cut to the standard end of this type of thread. What you need is a rebreather.
Ps don't fall for the it's a backup and should therefore never be touched until you need it bollocks. If you get a pony or stage (bigger pony carried in different place) make sure you know it's working by breathing off it at some point on the way down, once you hit the bottom and possibly on deco at the end of the day so you know it is working, know you can deploy it without thinking and are keeping the regulator working.
Bailout regs that never ever get used are always going to be less reliable than a reg that gets regularly used.
Great advise so far and no surprise that most agree....
If you keep all your regs the same, it makes spares/field repairs a doddle. Personally I dont think theres any time in a dive where I want to deliberately breath a crappy reg.
Backups have to be relied on when stuffs all gone wrong. That makes checks obvious, for me thats a quick check on the boat, then at least once on the dive (usually when I reach the target depth... before I start racking up the deco).
Tank size is always contentious..... but the Al40 mentioned earlier has a role to play even if you start bigger diving and its small enough not to be totally ridiculous when paired with a single.
Get Ali 40 and side sling it. A BTS SO40 cylinder is around £180, an Scubapro MK2/R195 can be had £150 new.
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Ali 40's are lovely in the water and not bulky out of it.
I use them as bailout on dives up to 40m or so.
I'd say you stand more chance of not buying twice if you
get one in the first place. If you move to a set of twins
you can use it for deco gas.