A 1.28 GPF toilet uses about one-third of a gallon less with each flush than a standard 1.6 GPF toilet. ... In a house of five, a 1.28 GPF toilet could potentially save about 10 gallons of water each day. Extrapolated for the entire year, that's about 3,650 gallons of water saved.Nov 19, 2021
What is a good GPF for a toilet?
A rating of 350 to 600 grams for a 1.6-gallon flush is good, although some toilets can handle up to 1,000 grams (2.2 pounds!) using only 1.28 gpf. To find a toilet's MaP score, go to MaP Testing.
What is the best gallons per flush?
A rating of 350 to 600 grams for a 1.6-gallon flush is good, although some toilets can handle up to 1,000 grams (2.2 pounds!) using only 1.28 gpf. To find a toilet's MaP score, go to MaP Testing.