Toilet Leaks
The most common and costly types of leaks can be toilet leaks. The tank should be checked to make sure that there is not a continuous overflow leak or a leak due to improper seating. If the toilet is operating properly, you may want to check faucets for worn washers or defective fixtures, check outside water taps to be sure they are completely turned off, check your water heater overflow pipe, check the humidifier tank that has a float arm and overflow, or for an underground leak. It may be necessary to call a plumber to help identify and/or fix the leak.