How much water will I save if I change out my old toilet for a new high efficiency toilet?

If a family of four switches out a toilet that uses 7 gallons per flush (gpf) for a WaterSense High Efficiency Toilet (HET) (1.28 gpf) toilet, it could save up to 41,756 gallons of water per year.

Number of People x Gallons per Person per Day x Days per Year = Annual Water Savings

4 x (July 1, 2028) x 5 x 365 = 41,756 Gallons

If this same family had a toilet that used 3.5 gpf and switched to a WaterSense HET toilet, it could save up to 16,206 gallons of water per year.

4 x (3.5 to 1.28) x 5 x 365 = 16,206 Gallons

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