Detecting Water Leaks

How to Detect a Water Leak

  • If you suspect a water leak, turn off all the faucets in the house. Check your water meter to see if the flow detector (a small red or black marker) is moving.
  • If the flow detector moves, then stops, then moves again, it is a good indication that your toilet valve is leaking or that there may be a very small leak.
  • If the flow detector moves slowly, it is a good indication that you have a small leak.
  • If the flow detector moves rapidly, it is a good indication that you have a break in your line - check for soggy areas in your yard or under your house.
Leak Sources

  • Your toilet may have a silent leak. Drop a little food coloring into the tank. Wait about 10 minutes without flushing. If color appears in the bowl, you have a leak. 
  • Check for moist spots around and under the house plumbing and around outdoor plumbing.
  • Replace worn washers in faucets and showerheads. Even a small drip can waste as much as 170 gallons of water each day, or 5,000 gallons per month. 
Possible Toilet Leak Sources

  • The flapper valve and valve seat (A) have deteriorated or corroded.
  • The flushing arm and lift chain (B) are not working properly.
  • The water level in the tank is too high and spills into the overflow tube (C).
  • The float rod, ballcock and / or float ball (D) are corroded.
Water leaks are costly. A “typical” toilet leak at today’s rates can add three hundred dollars ($300) to a single water bill. Our information is provided as a courtesy with hopes of action on your part, which may minimize an unnecessary waste of water and expense to you.