Posted on February 7, 2013 Avoid using the toilet for a wastebasket, and you’ll stop flushing your money down the toilet. Every flush you eliminate can save between two and seven gallons of water. The average toilet flushes 1.6 gallons per flush. One person can consume as much as 10 gallons per day, or 3,760 gallons per year. By not throwing your tissue or trash down the toilet and only using the toilet for its intended purpose, you can save as much as 2 flushes per day. At 1.6 gallons per flush, that is a total savings of 1,168 gallons a year. Therefore, putting the money back into your pocket and not down the drain.