Steve Firth wrote:
Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.

Does anyone know of an adaptor that would let me connect some
flexible pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

The usual way to do this is to fix a hose tail through the bottle cap.

For example:

http://collinsnets.co.uk/shop/hose-t...-connector-8mm

You will need to find a suitable back nut and sealing washers.

Yep, that seems to be the tricky bit.

I'm leaning towards the tyre valve approach (as this chap has done).

http://www.truetex.com/carbonation.htm

http://www.truetex.com/co2a.jpg

http://www.truetex.com/co2b.jpg

Tim