How to clean a milking machine?

Question:we brought a 2nd hand machine and the tubes need a good clean

any ideas,the best way to clean the tubes?
thanks

Answers:
Didn't you get the brush with it? I bought one, and it came with the brush. It is like a bottle brush, only on a 2' flexible wire. Try your local feed store, or ask a local dairy farmer. They are available.