USDOE Water Savings Calculator

Click here for a link to a Water Savings Calculator from the US Department of Energy. When using this calculator, add the following information to compare your savings using a waterless urinal instead of a flush urinal.

Most urinals are currently 1.5 or 1.0 gallons per flush. (The default gpf on this site is 1.0, but note that 0 is considered best!)

If you are comparing .5 gpf, enter .5 on the gallons per flush line. If you are comparing a pint urinal, enter .1

If you would like to see the money you could save using waterless urinal, simply put "0" in the gallons per flush line.