On Apr 18, 9:36*pm, Ed Pawlowski wrote:
On Thu, 18 Apr 2013 16:18:11 -0700, "Bob F"
wrote:



The vacuum seal is bucket surface to bucket surface, which combines with
friction between the two wedged together surfaces. In many cases, the friction
is the bigger problem. The compressed air trick will expand the outer and
contract the inner bucket, killing two birds with one blow.

Easier is to drill a hold in the bottoms so you don't get the vacuum.

That defeats the purpose of a bucket in most cases, unless you also
have a lot of old corks from wine bottles handyg.