The American Water Works Association (AWWA)® standardizes accuracy ranges for the entire water industry to ensure fair and accurate measurements. The AWWA® standards require water meters to be accurate within 1.5% (high or low). All manufacturers are required to calibrate and test every meter before they are shipped.   

The simple answer is that it's unlikely - a faulty water meter is extremely rare. The American Water Works Association (AWWA)® standardizes accuracy ranges for the entire water industry to ensure fair and accurate measurements. The AWWA® standards require water meters to be accurate within 1.5% (high or low). All manufacturers are required to calibrate and test every meter before they are shipped. 

Like any mechanical device, water meters are susceptible to wear and deterioration over time; this results in the internal mechanisms slowing down. As such, the water usage registers less than the amount that was actually used. 

You can check the meter - refer to the Water Leak Detection information for instructions on how to read the water meter register to monitor water usage as well as to check for leaks.

A faulty water meter is extremely rare. For concerns please contact us to discuss the issue.