Why is My Water Bill So High? (Investigating Leaks)

An unexpectedly high water bill is often the first clue that something is wrong. Before you blame the utility company's meter, check these three common water wasters.

A toilet with a worn-out flapper valve can silently leak 200 gallons of water a day.

The Test: Put a few drops of food coloring in the toilet tank. Wait 30 minutes without flushing. If color appears in the bowl, you have a leak.

A broken sprinkler head or a cracked underground irrigation line can waste thousands of gallons. Since these run early in the morning, homeowners rarely see the geyser. Look for lush patches of grass or soggy soil.

If the ground between your meter and your house is wet or spongy, the main supply line may have cracked due to tree roots or age. This requires immediate professional repair.