Water Leak Detection Guide
Water leaks are one of the most common causes of high water bills. Use the tips below to check for leaks around your home.
Toilet Leaks
Toilets are a common source of hidden leaks.
- Wait until the toilet tank has finished refilling and the water is still.
- Add a few drops of food coloring to the tank.
- Do not flush.
- Check the bowl after 15–30 minutes.
If color appears in the bowl, you likely have a leak. The most common causes are a worn flapper valve or a faulty overflow pipe. These repairs are often inexpensive, but a licensed plumber can help if needed.
Faucet Leaks
Check faucets for:
- Dripping from the spout
- Water around the base of the faucet
- Leaks at pipe connections under sinks
Many faucet leaks are caused by worn rubber washers or seals. If you're not comfortable making repairs, contact a licensed plumber.
Underground Water Service Leaks
Property owners are responsible for the water service line that runs from the curb stop near the property line to the water meter.
Signs of a possible underground leak include:
- Wet spots or standing water in the yard
- Unusually green, soft, or mossy areas
- Low water pressure
- Rusty water, dirt, or air in the water
- Brown or dying patches of lawn
- Cracked or heaving pavement
- Sinkholes or potholes
- Uneven floors or a structure that appears to be settling
- Unexplained increases in water use or water bills
- Water usage that remains consistently high or steadily increases over time
Suspect a Leaking Lead Service Line?
The City will replace a leaking lead water service line at no cost to the property owner.
If you suspect a leak on a lead service line, call 3-1-1 or 616-456-3000. Let the representative know you believe you have a leak on a lead service line, and staff will guide you through the next steps.
