Quote: (Originally Posted by
wedivebc)
The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind
I have one of John's KISS caps and it truly is A Thing Of Beauty.
I used to use a couple of sandwich bags and some rubber bands to cap the scrubber, not so much to stop CO2 circulating (although it does that) but also to stop the lime drying out as it needs some moisture to function.
The Narked@90 caps seal well, and have a cunning large knurled knob that makes a seal against the scrubber cap. I doubt (but could be wrong) that it's 100% watertight but it's fine for just leaving in a room.
Plus (unlike the plastic bags) the scrubber is safe if you knock it over.
Janos