All righty, we all agree its not a good idea so thats what's really important here. Buckets are not meant to hold pressure. Here's where my post should end, but I can't help myself on a fun Friday morning. :rockin:
How many times have you heard of a clogged airlock causing a primary bucket to blow up with plastic shrapnel flying through the air? Now how many times have people posted that the lid or airlock blew out and created a mess? I bet you could try it 100 times, and 100 times the lid/airlock blows off. Although not a design feature, the fail safe for a bucket setup is the lid or airlock.