Trimix question

[warmwaterdiver]

Originally Posted by GLOC

The only thing to bear in mind is how much He pressure you will have in your Js to make it worthwhile. As far as I can remember from a myriad of posts, unless you have a booster, you will have to have around 3 J's to make it worthwhile which isn't a problem if you have cheap rental but in the grand scheme of things, it might be worth just going to a dive centre to get your fills.

HTH

my set-up for this year

[finbar.taylor]

Originally Posted by warmwaterdiver

my set-up for this year

Your going to need more O2 but you'v got a few years of Helium

[Ahmed Adly]

Originally Posted by GLOC

The only thing to bear in mind is how much He pressure you will have in your Js to make it worthwhile. As far as I can remember from a myriad of posts, unless you have a booster, you will have to have around 3 J's to make it worthwhile which isn't a problem if you have cheap rental but in the grand scheme of things, it might be worth just going to a dive centre to get your fills.

HTH

Enter the Omni Booster.
The Omni Booster is a few cheap pipoe fittings and an old regulator that make it possible to run helium through your compressor (which is TOTALLY safe and wastes nothing).

This way, you can use your helium down to the last drop without the need for cascading.
Also, you can harvest gas from tanks. So say you are 4 divers and each have 100 bars of the good stuff left over and want to use you doubles for some nitrox diving the next day. You can use the Omni Booster to harvest the gas into a bank OR some other doubles if you fancy.
I found that it is best to have a 300bar J to be used as what I fondly came to call the "bastard mix" which is basically any old crap left over in doubles or mixes thast have gone wrong.
Basically the bastard mix always has a usable helium content which you can use somehow in the future. Good for lousy cheapskates (such as myself)

[divingniknaks]

Originally Posted by warmwaterdiver

my set-up for this year

Is the green one some kind of new fangled bailout ?

Or a big Argon suit inflate ?



I know where the cloakroom is thank you !

[nickb]

Originally Posted by Steve Jones

But there is no substitute for a good understanding of the basic maths involved.

Agreed. Followed up with a quick check against the software:

[John Touhig]

Originally Posted by finbar.taylor

Your going to need more O2 but you'v got a few years of Helium

you beat me to it...

[warmwaterdiver]

Originally Posted by finbar.taylor

Your going to need more O2 but you'v got a few years of Helium

Originally Posted by John Touhig

you beat me to it...

I've got plenty of O2 for those little 3L cylinders

[deepbull]

Originally Posted by warmwaterdiver

I've got plenty of O2 for those little 3L cylinders

did you ever pay for the fill's in the dive shop i did for you the night we played with your unit?


ada

[Mal Bridgeman]

Originally Posted by warmwaterdiver

my set-up for this year

OK Gary,

So not as impressive as yours ...but it's a start

[stevechesh]

Mal, are you running your own compressor with your setup? Only reason i ask (from a cost point of view, rather than conveniance point), is that you'll end up with a lot of waste and not many fills, assuming you are going for standard gases?

unless of course you only pay for what you use out of the J?

I've been running the last dregs of my helium J direct through the compressor, and scavenge the remains of mix from my tins using an old lift bag....