A friend of my nephew got a dent in his pipe, and they decided to take the dent out by filling the pipe up with water and freezing it. They did get the dent out! Unfortunately they also made a new mess!
I dont know. My dad gave it to me and asked me to fix it, and told me they did the freeze trick to take the dent out. lol I was like I never messed with pipe before, but i will see what i can do.