How does one check for water leaks in the house?

Not all water leaks are visible or audible.

The most common cause of unexpected, high water bills is the "leaking" toilet, which often can be a "silent leak". The leaking toilet may be the result of a deteriorated flush valve (flapper in the bottom of the supply tank). You can identify this particular problem by placing several drops of food coloring in the supply tank. If you see color in the bowl after 15 minutes, the flush valve is leaky. The toilet will also waste water when the supply tank water level is set too high, resulting in continuous water waste through the overflow tube. The water level should be about ¾ inch below the top of the overflow tube.

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1. Water and Wastewater Emergency Contact Information
2. How do I get help from the Water & Wastewater Utility after hours, on weekends, or on holidays?
3. I recently moved in/out of the Village of Grafton. How do I update my Water & Wastewater Utility account?
4. There was a water main break near my house recently. What do I do if I'm experiencing unusual water system issues?
5. What should I do if my sewer "backs-up"?
6. If my water becomes discolored, what can I do about it?
7. How does one check for water leaks in the house?
8. When are Water & Wastewater services billed?
9. What options are available for payment of Utility bills?
10. Where can I pay my water bill?
11. What are the ‘flat charges’ on my water bill?
12. What is the typical water bill for Village of Grafton residents?
13. Why is my drinking water cloudy at times?
14. What is the hardness level of Grafton’s water, and do I need a water softener?
15. How do I know my water is safe to drink?
16. How do my water & sewer rates compare with other Wisconsin communities?
17. Does Grafton have any summer sprinkling restrictions?
18. What is the oily film in my water when I make coffee?