Maybe for illegal liquor, maybe for purifying water.
! Drinking distilled alcohol may be harmful / fatal.
! Distilling alcohol may be illegal
! Drinking distilled water may be harmful / fatal
Step 2: Construction
Drill a hole in the bucket, and poke the lower end of your coil through this.
The copper tube is connected to the pressure-cooker with a (brewing) cork
A bit of Blu-Tac seals the tube to the bucket
Fill the bucket with cold water, and maybe some ice.
Step 3: Use
One might wish to add a bit of colour with homemade caramel, and have homemade brandy.
And then one might drink the output and try to post a coherent Instructable.