Finding leaks can be difficult. First, we recommend turning off the water to your home. For those with water meters, check your meter (typically found in front of your property) and see if there is any movement. If the water is shut off, there should not be any movement in your water meter. If so, you may have a leak or malfunction. An easy way to check if your toilet is leaking is to place a few drops of food coloring into the tank. If you see the color in the bowl, you may have a change your flapper. Please bring the old flapper to the store with you and replace with the same flapper. A different flapper may cause the toilet to not function well or change the flush volume.