A GREAT DAY OUT AT STONEY

[DIVE BUDDHA]

single point of entry for the gas that then splits into 2 hence the 2 valves! and

each valve has the fist stage behind it! having the ability to get redundancy from

a single gas source

i looked at it yesaterday and was very impressed!

[Balders]

I see, very clever idea.

Presumably, if you can shut down quick enough, then you get the redundancy without the need to carry a pony.

What if you get a malfunction and you've only about 100bar left in your tank? I know most freeflows happen when you first jump in but whats better than a completley seperate air source?

Balders

[Arfie]

Originally Posted by DIVE BUDDHA

me and julie set off at 6.30 and still got on the bottom car park it

was ace none of the weekend stupid o clock start !

Newsflash Leigh, 6:30 IS stupid O'clock

Glad you got wet though

Arfie

[DIVE BUDDHA]

Originally Posted by Arfie

Newsflash Leigh, 6:30 IS stupid O'clock

Glad you got wet though

Arfie

ok ok i admit it arfie it was nice to have a lay in

beats getting up at 4 am

great to see you and bill got wet today mate

[DIVE BUDDHA]

Originally Posted by Balders

I see, very clever idea.

Presumably, if you can shut down quick enough, then you get the redundancy without the need to carry a pony.

What if you get a malfunction and you've only about 100bar left in your tank? I know most freeflows happen when you first jump in but whats better than a completley seperate air source?

Balders

a very good idea mate indeed!

[pieater]

Originally Posted by Balders

whats better than a completley seperate air source?

Nothing, apart from the cost. Also, if the neck ring blows, you're completely screwed. I wouldn't like to rely on one.

[Balders]

Originally Posted by pieater

Nothing, apart from the cost. Also, if the neck ring blows, you're completely screwed. I wouldn't like to rely on one.

Umm, now its getting complicated, please explain......

Balders

[pieater]

Originally Posted by Balders

Umm, now its getting complicated, please explain......

Balders

Well, your question was " what's better than a completely separate air source?" In my opinion - it's worse than a completley redundant air source. For one reason - it gives no protection whatsoever for a neck o ring blowing. Financially - you have to buy a new valve. You have to buy another first stage. So for the price difference you have the illusion of redundancy without actually having it. For a couple of hundred quid? Not for me.

Is it better than diving a standard single - yes; but don't kid yourself you're getting a redundancy benefit.

[weazelz]

how was the viz Leigh? I think we're up there on monday with the other didn't-get-out-of-dover'ers

[Ali]

Yep got to agree that there is one major failiour point the neck o ring, but in all my time in diving have only ever seen a leak in one of these and that was straight after a service and was down to a faulty ring. I think the chances of the o ring failing are very slim.
Shutting down is tricky as a 15 Ltr on a STA keeps the valve out of reach. That is why the tank is set high on my back. I can shut down in seconds.
Another plus is if you need to donate air the 1st stages won't be over worked and less likley to go into freeflow.

The main reason I have this tank was for switching between my twins and single without having to strip my regs. So no extra cost for me

I also have a Beuchat Y Valve, another fantastic valve.

However if I was to dive solo or deep on one I would defo carry a side

Ali