Join Date: Dec 2007
Location: Madison, WI
Thanked 37 Times in 37 Posts
Rep Power: 9
I could imagine pouring acetone or something down the mast in rivers, and having the entire inside of the mast coated with melted foam goo. Not sure if that is what would actually happen.
What about sand blasting or a plumbing auger? (Just trying to think outside the box here)