My pipes burst during the winter because they froze after they were hooked back up improperly after fire damage. The pipes have been torn out and replaced in some spots but they are mostly ancient ones from when the moblie home was put on the property in 1980. So that being said, do I need to replace all the old pipes because they have not been used in over 6 months? Is there possibility of dry rot within the pipes? Or can I just replace a few that need it and the rest be okay?

Thanks for any advice.

What type of material is it?

Set your mind at ease. No matter what the material pipes do not dry rot. Good luck, Tom