City of Maryville

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Detecting Water Leaks in Your Home
Finding water leaks can save you water, which means saving money on your water and sewer bill.

In most instances the leak involves the flush valve, the rubber flapper that lets water from the toilet tank enter the bowl.

The other major cause of leaks in the tank is the filler valve assembly. This assembly can be out of adjustment, letting the tank over fill or it can just be leaking. It is important to note that regular tank maintenance can help prevent leaks. The flush valve should be replaced every two to three years. Always replace parts with high quality parts. The filler valve assembly should last several years depending upon the quality.

Here are a few tips to help you check for a leak:

  1. Listen. You may be able to hear the water moving through the valve assembly inside the tank.
  2. Put your hand on the side of the tank. If the tank is cold or sweating and you have not flushed it for a while you may have a leak.
  3. Remove the tank cover and check  the water level of the tank. It should be set so it is below the overflow level.
  4. Add a few drops of food coloring to the tank. In ten minutes check the bowl. If any of the colored water is in the bowl you need to do maintenance of the tank.

Even small leaks can add up quickly. A continuous leak from a 1/16” stream can add up to over 24,000 gallons of lost water in a one month period. Dripping faucets should be fixed as soon as they start.


If you have any questions feel free to contact the water billing office at (660) 562-8005.


You may notice that your water bill measures water in cubic feet, while you are probably used to thinking about gallons of water. Here's a web page that will help you convert from one unit to another: http://www.easysurf.cc/cnver6.htm#cfg4