Just transfered my Blackberry from the PF, I made extra for topping up at racking time.
This is in a 1/2 gal DJ with the narrower neck
the bung that fits is an optic bung
unfortunately the hole in it is too big for an airlock and I had been advised to use blu tak to seal it..
Then I had the idea of using a PET bottle grommit
it was a tight fit but it went in far enough
this was the end product
This is in a 1/2 gal DJ with the narrower neck
the bung that fits is an optic bung
unfortunately the hole in it is too big for an airlock and I had been advised to use blu tak to seal it..
Then I had the idea of using a PET bottle grommit
it was a tight fit but it went in far enough
this was the end product
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