We have similar problems here, Roger, but that is the point of using the
second bottom, which is a press fit inside the bead of the other container.
This leaves a slight recess for controls. If you want no recess, then put
the cut off bottom in right side up, and you end up with essentially a
double ended sealed (except for the seam between pieces) bottle. Breathes
just enough to equalize pressure changes, seam isn't big enough for most
insects. Tiny ants might squeeze in, but insecticide could fix that.

--
Crazy George
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