how many gallons of water does the average toilet flush
Toilets manufactured in the 1980s use 3.5 gallons per flush, and models manufactured prior to that use even more, between 5 and 7 gallons per flush. When you consider the average person flushes five times per day, this can account for a considerable amount of water usage, particularly in multiperson households. Every toilet manufactured since 1994 uses a maximum of 1.6 gallons per flush. Some newer models use as little as 1.28 gallons per flush. While early models used to draw complaints about their poor flushing capabilities, low-flush toilets now flush just as well as their older, water-wasting counterparts.