While the possibility of plumbing issues certainly arise when there are foundatuion movement. It would truly depend on the extent of the movement. Also factors such as soil movement, plumbing pipe type, and is the home a pier and beam home or a slab home. After selling for 20 years, I have senn it to be true that about 10% of homes with foundationm problem need another type of repair such as plumbing.
I hope this was helpful. David... more