Everybody should know where the main water shut off valve is located. Make sure everyone understands how to identify the valve and shut it off. It is usually located in the front of the house at the foundation wall where the water line enters the building from the main street service line.
High water bill:
Check all faucets and fixtures: for dripping water or damp spots. Be sure to check under sinks for moisture or leaks in both drain and water lines. Repair all leaks promptly (leaks can not only cause large quantities of water loss, but if not repaired promptly can lead to further more expensive repairs or cause a fixture to need to be replaced entirely)
Check outdoor water faucets: (water spigots for outside use, i.e. garden hoses) both inside the house at supplying branch for spigot, and outside to see if they froze over the winter or if the valve deteriorated and is leaking
Check the basement: for puddles, or leaks in any of the overhead pipes.
Check your toilets for leaks:
- Place a few drops of food coloring in the tank - not the bowl.
- Check the toilet after about 20 min to half an hour. If the water in the bowl has some of the color in it, the tank is leaking and the flapper or valve seat may need to be replaced.