Water Savings Calculator



Gallons Saved Annually Dollars Saved Annually
3.5 Gpf vs. 1.6 Gpf: 3.5 Gpf vs. 1.6 Gpf:
3.5 Gpf vs. 1.28 Gpf: 3.5 Gpf vs. 1.28 Gpf:
3.5 Gpf vs. 1.0 Gpf: 3.5 Gpf vs. 1.0 Gpf:
Assumptions:
  • Number of flushes per person : about 5 per day
  • Old toilets (prior to 1993): use 3.5 gallons per flush
  • Low consumption toilets (after 1994): use 1.6 gallons per flush
  • High-Efficiency Toilets (HET's): use 1.28 or 1.0 gallons per flush
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