Why has my water bill increased? Could I have a leak?

A noticeable increase in water usage may indicate a leak somewhere in your home. In many cases, the issue is not immediately visible and may go unnoticed for extended periods of time.

Common causes and ways to check include:

Check Your Toilet

Toilets are one of the most common sources of hidden leaks.

Add a few drops of food coloring to the tank
Wait several hours without flushing
If color appears in the bowl, the toilet is leaking
Also check for water flowing into the overflow pipe.

Check Faucets and Fixtures

Small drips can waste a significant amount of water over time.

Inspect sinks, showers, and outdoor spigots
A worn washer or fixture is often an easy and inexpensive fix

Check Your Water Meter

You can test for hidden leaks using your meter:

Record your meter reading before going to bed
Avoid using water overnight
Check the reading again in the morning
If the reading has changed, a leak may be present

(Be sure to account for appliances such as ice makers or humidifiers.)

Understand Normal Water Use

Sometimes increased usage is simply the result of normal household activity. Below are typical water usage estimates:

Shower: 25–50 gallons
Bath: ~36 gallons
Toilet flush: 5–7 gallons
Brushing teeth: ~2 gallons
Hand washing: ~2 gallons
Dishwashing (manual): ~2 gallons
Dishwasher: ~12 gallons
Clothes washer: 30–60 gallons
Outdoor watering: 5–10 gallons per minute

If you suspect a leak or cannot identify the source, it is recommended to contact a licensed plumber for further inspection and repair.