Foundation Repair problems can be caused by plumbing and sewer line leaks. If there is water leakage under the rigid, concrete foundation then the soil will consolidate or compact itself. When this happens the volume decreases and the soil loses contact with the bottom of the foundation. If the area is large enough the foundation will collapse because there is nothing supporting it underneath. The foundation movement will also cause damage to the home or commercial building. Therefore it is a good idea to have a plumber check older sewer systems periodically. Please click the following links to learn more about foundation repair, under slab plumbing diagrams and plumbing and sewer line leaks.