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Paul Brookes · 13th March 2007, 07:48

Hi

I recently completed my Mod2 so can now start seeing some cost benefits of owning a rebreather in terms of Helium fills.
My query is about analysing trimix fills at the filling station. I have yet to buy an He analyser and having spend an horendous amount of money on additional equipment and training to get my trimix ticket, it will be a while before I do.
Therefore, I expected my lds to have the facilities to verify the contents of a fill they provide. However, when I got my diluent and stage cylinders filled recently, they advised me that they do not have an He analyser as most of the trimix divers have their own. So I had to take it on faith that the he content was correct.

As it happens, my dive was at the NDAC in Chepstow and they let me use their analyser, but I wasn't impressed that I was expected to undertake a 50m dive on the assumption that the blender got their sums right.

If I was performing my own blending, then I would buy my own analyser, but surely if a shop is supplying the fill, they should be able to analyse it.

Is this right? Am I expecting too much here?

Thanks, Ramble over.
Paul

13th March 2007, 07:48	#1 (permalink)
Paul Brookes New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jan 2006 Location: Bournemouth, UK Posts: 35	Trimix Fills and Helium Analysers Hi I recently completed my Mod2 so can now start seeing some cost benefits of owning a rebreather in terms of Helium fills. My query is about analysing trimix fills at the filling station. I have yet to buy an He analyser and having spend an horendous amount of money on additional equipment and training to get my trimix ticket, it will be a while before I do. Therefore, I expected my lds to have the facilities to verify the contents of a fill they provide. However, when I got my diluent and stage cylinders filled recently, they advised me that they do not have an He analyser as most of the trimix divers have their own. So I had to take it on faith that the he content was correct. As it happens, my dive was at the NDAC in Chepstow and they let me use their analyser, but I wasn't impressed that I was expected to undertake a 50m dive on the assumption that the blender got their sums right. If I was performing my own blending, then I would buy my own analyser, but surely if a shop is supplying the fill, they should be able to analyse it. Is this right? Am I expecting too much here? Thanks, Ramble over. Paul
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