Cleaning rust from water jackets.

[tubman]

Henry, I too, am a great fan of Evaporust. My only problem was that my 5 gallons turned black and quit working well before I'd run 300 lbs of steel through it.

My question to you is : "Did you ever do the Evaporust 'thing' by running it in your engine?" I have been thinking about doing this and would appreciate any information before spending that kind of money on an unknown procedure. (Though from all my experience, it should work very well.)