i think you are on a slippery slope!:lol:
Where do you get airlocks that screw onto the bottles? That looks to be the bees knees for small test runs!...
Standard Airlock Grommets
3 Pack
Ideal for fermenting vessel lids
Simply drill a hole using a 12.5mm drill bit (1/2 inch)and insert Grommet
A standard airlock will then pass through centre of Grommet
You can use standard 5 litre water bottles and the grommets below to allow fitting a standard airlock.
http://www.ebay.co.uk/itm/Airlock-G...529483?hash=item4b177bb14b:g:xlAAAOSw7NNUFcsE
Enter your email address to join: