… Everyone from plumbers to manufacturers to third-party testers agrees: Thanks to lessons learned from the disastrous low-flow products of the ’90s, the latest toilets not only work, but they work better than the old water-guzzling ones ever did. Stroll down a Home Depot aisle, and most toilets you see will use a mere 1.28 gallons per flush. That low of a flush not only works, but it can save households nearly 13,000 gallons of water per year, in addition to a bit of money, according to the Environmental Protection Agency. If everyone opted for a 1.28 gpf toilet, the country could save 260 billion gallons of water per year. (For comparison, about 60 billion gallons careen over Niagara Falls per day.)