My Regin pump has the in built N/O2 4 stage blending valve fitted so I leave the mixture control to that. It's calibrated every 3 months to achieve the optimum blend. I had to have a special canister attachment made to allow an extra bottle to be fitted. This introduces a dab of Ar and CO. I believe that this helps the N and O2 to achieve a stability that will allow for a better and more progressive rate of expansion as opposed to just air.
Not cheap though, the pump cost £168 and the calibrations and refills are £84 a pop hence why I charge a premium to swap the gases over. Customer is always impressed with the overall long term benefits it provides though.
I also exchange the Shrader valve insert to a specialised one for this mixture. They look the same but can withstand the new mixture better and would only need replacing once every two years instead of yearly.
Jon
If your AR and CO bottle ran out during a visit and you had to go out to get another, how much would you charge on top??
Ps am I pushing it![]()
Pushing what?
I normally carry a spare as i do with almost everything ever made so I only have to do one visit but if it did happen then I would only charge a nominal fee, probably about £25 or something.
Jon

I did and I let you off.....the ratio would actually be 1:3.7 Nitrogen to air.....Learn to read my posts properly
Jon

I'm on the cusp of getting banned according to that Mod this afternoon...Pushing the new ban on not talking about prices unless you have Tony's log on credentials.
The mods will come and threaten you with the Ban hammer.
Pushing the new ban on not talking about prices unless you have Tony's log on credentials.
The mods will come and threaten you with the Ban hammer.
I'm on the cusp of getting banned according to that Mod this afternoon......I wouldn't know what to do with myself heaven forbid I got banned..
![]()

You never know Jon , I might come back as Gaswizzard only spelt differently (gaswizard).If you did get banned Steel you could try a new hobby? Magic maybe? If you get good you could always progress to Wizard status? Something to consider.
Jon
If you did get banned Steel you could try a new hobby? Magic maybe? If you get good you could always progress to Wizard status? Something to consider.
Jon
Nah - too late. I think I'm going to have to report you.
A - for pricing something at £84.... that's just copying.
B - being an inferior engineer.
If you do become a wizard let me know I'm on the look for a Mary popins type bottomless bag but in rucksack format, don't wanna lock weird with a handbag in the bus!

If you do become a wizard let me know I'm on the look for a Mary popins type bottomless bag but in rucksack format, don't wanna lock weird with a handbag in the bus!
You never know Jon , I might come back as Gaswizzard only spelt differently (gaswizard).![]()
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