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Message: [QUOTE="Bill Sauder, post: 222916, member: 136506"] The problem with attaching sacrifice plates is that they have a limited radius of protection and they must be tapped and screwed into virgin metal to work. Even assuming a large radius of protection you need a fantasticly large number of sacrifice plates, including the interior decks, uptakes, etc. You are talking about an operation of tens of millions of dollars. For protection that is temporary and disfiguring. Who will pay for it? The other problem with the sacrifice plates is that they only protect from chemical attack. The steel is being consumed by iron-eating bacteria as well (hence the rusticles). [/QUOTE]