SIGNS OF WATER LEAKS Before we reveal the five sources, it’s first helpful to know signs that your house might have a water leak. In addition to obvious signs such as seeing stagnant water or a water mark on a wall, other signs of water leaks include: Mold or mildew growth. An unusually high water bill. A warm spot on the floor, which could signal a hot water pipe leak. (This is especially common on concrete slab floors.) The sound of water running when nothing is turned on. Foul odors emanating from floors, walls, drains or sewers. Cracks in your home’s foundation. (This could also be caused by frost heave.) CAUSES OF WATER LEAKS Here are five causes of water leaks–and how you (or your plumber) can get a handle on them. The source:  Your outdoor hoses The cause:  Weak connections or frost damage can cause leaks. The fix:  Inspect the connection at the spigot for any loose connections; if you notice a loose connection, replacing the washer can ensure a tighter fit. (Tightening with a