Sometimes the hoses and pipes that supply your appliances with water become loose, causing a leak. Often, loose water connectors occur due to shifting.
For example, your washing machine hose may spring a leak due to shaking during the spin cycle.
Sullivan Plumbing have leak detection equipment that can quickly and accurately find the source of leaks.
Even if the leak is under concrete or behind a wall. Ground microphones or listening discs are acoustic listening devices that a plumber uses to find leaks.