Neil Arlidge wrote on 16/01/2009 :
> Bruce Napier wrote:
>> On 16 Jan 2009, at 10:19, Adrian Stott wrote:
>>
>>> Why would a more complex (i.e. adjustable) one be needed?
>>
>
> RONALERT...RONALERT!
>
> ISTR that mine was initially over pressurised with nitrogen and you let gas
> out until it was at the required pressure.
> Is nitrogen less likely to escape through a rubber diaphram than air?
Its the industry norm to use Nitrogen for pressurising things as it an
inert gas so less likely to lead to an explosion if it gets in with
whatever is the other side of the pressure barrier.
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