Much like an automobile or other mechanical device, the meter slows down with age. While the meter may slow down and under register use, it cannot over register as its mechanical parts are not capable of speeding up or registering a significantly higher reading than actual usage. If your water bill shows a dramatic increase over the previous year’s usage, and usage patterns have not changed (i.e. new pool, increase in house members) please call Utility Billing at (972) 924-2432. You can also go to the www.annatexas.gov, click on online payments then select View my water usage.