How much water do hotels use

Why Hotels (and other facilities) Like Waterless Urinals

Urinals use about one to 1.5 gallons of water per flush.  Older units can use as much as four gallons per flush.  Considering that the average urinal is flushed about 2,000 times per month, this means that just one urinal can use more than 35,000 gallons of water per year