Loesjuh1985

Answer: Sewer and drainage pipes from the 19th century until only about 40 years ago were cast iron. It is a thick but fairly brittle metal, especially if it was older and beginning to deteriorate. It is theoretically possible to rupture the pipe with a rock, although probably not as easy as it appeared. Note I said "theoretically."

Answer: Well when Andy strikes the pipe, it sounds like metal.

Chosen answer: In the book the main drain pipes in Shawshank are ceramic, which is why Andy is able to break through. There is nothing in the movie to indicate the pipes are metal and not ceramic.

Guy

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