A recurring sewer gas smell could indicate the wax seal between the base of the drain and the underside of the toilet has failed. Wax seals are available at any hardware store but do require some plumbing knowledge to install. A running toilet is a common plumbing complaint. In a gravity flow toilet, this usually means the flapper seal is worn and should be replaced. New flapper seals are available at most hardware stores. Make sure you choose the right style for your toilet. If you are adding a heated floor to your bathroom, do not run heating lines or cables within one foot of the wax seal. The heat could liquefy the seal and cause sewer gases to escape. If a pressure-assisted toilet is running between flushes, it may mean a poorly adjusted flush button is keeping the flush- valve cartridge open. The button can be re-adjusted but in some cases you may have to replace the pressure regulating valve. Why do I smell a sewer gas smell in my home? Why does my toilet run continuously? PLUMBING 91