The difference? Some older toilets use up to 8 gallons of water per flush. A toilet’s date stamp - the year it was manufactured - is located inside the tank on the back side. Toilets are the largest user of water in your home. …




The difference? Some older toilets use up to 8 gallons of water per flush. A toilet’s date stamp - the year it was manufactured - is located inside the tank on the back side. Toilets are the largest user of water in your home. …