[AndrewJ]

Gday Robin

Not me.

I'll believe you :-)

When i was brewing "rocket fuel" brews, i never bothered with an "airlock", i used to cover the carboy with gladwrap ( with a small hole in it ). Once it settled down from the initial fermentation, i replaced it with a clean one and actually watched the wort till it stopped bubbling, vs look at what came though an airlock )
Much simpler

Andrew