Are you flushing money down your toilet?
If you have an old high-volume toilet that uses 3.5 - 7.0 gallons per flush (gpf) you could be unknowingly wasting water. Tampa Bay Water estimates that single-family households replacing high-volume toilets may save up to 32 gallons of water daily.You can save water and money by replacing any high flow toilets with ULF toilets or HETs.
Not sure if your toilet is a high-volume or low-flow toilet? Put the lid down and check for an imprint between the seat and the tank that reads "1.6 gpf/6.0 lpf." If it's there, your toilet is a low-volume model. Not there? Look inside on the lid or the wall for a similar imprint. If you see a date embossed inside the tank, it is likely to be a date prior to 1994, which indicates that your toilet is one of the older high-volume models that should be considered for replacement to reduce your water use.
Choose a new toilet carefully. Not all toilets perform alike. Consider factors such as style, performance, fit and color of your toilet. To keep your toilet working at peak efficiency, check periodically for leaks and replace worn internal parts.
Toilet Flappers - A Common Source of Hidden Leaks
Most toilets have a rubber valve called a flapper that holds the water in the tank until it is flushed. Over time, usually about a year, the flappers may begin to warp and allow water to leak into the bowl. A leaking flapper can waste hundreds of gallons of water per day, and you may not be able to hear the leak.
Flappers should be tested periodically by placing dye tablets in the tank to see if the color appears in the bowl without flushing. If it does, the flapper should be replaced.