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HomeDEPARTMENTSUtility Billing...IMAGE...Where Could the Increase in My Water Usage Be Coming From? > simple steps

Conduct your own meter accuracy test

If you're still not convinced that your meter is accurate, there is a simple industry accepted way to test its accuracy – the 10 gallon bucket test.

The City of Houston has a video that explains how to verify the accuracy of your water meter and they cover how to do this test - https://www.youtube.com/watch?v=5z6d_4nLVTg .

To complete this test do the following:

  • First, make sure all of your water is turned off.  
  • Next, write down your meter register reading and the number of gallons indicated by the sweep hand.  This hand measures from 1 to 10 gallons.
  • Now, fill ten gallons of water into a measurable bucket – many will use two 5-gallon buckets to make it easier.
  • Finally, return to your meter…your sweep hand should have advanced proportionately to the number of gallons that you measured into the bucket.  Note: the sweep hand should have advanced between 9.8 and 10.2 gallons for a ten gallon test…the American Water Works Association (AWWA) accuracy standard is any test between 98% to 102%
  • Note what the new read is on the meter and how many gallons were shown to have been used by the sweep handAnything less than ten gallons, the difference is favoring you.
  • However in the unlikely event the sweep hand is ½ gallon or more than the ten gallons on the dial, please contact ub@cityofmelissa.com or call (972) 838-2035 and we will schedule an official test with public works.

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