Toilet leaks rank among the biggest water wasters – often 200 gallons a day. But how do you know your toilet is leaking? Put a few drops of food coloring (red, green or blue work best) in your toilet tank and wait 20 minutes. If the color seeps into the toilet bowl without flushing, there’s a leak. Make sure to flush the toilet immediately after this experiment to prevent staining the porcelain. Most leaks can be traced to a worn or faulty flapper inside the tank and fixed with simple tools.
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