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1. What is a Dual Flush Toilet?

These two button dual flush (0.8/ 1.6 gallon) toilets are common in other countries and recently approved for sale in the United States, allow people to be even more water efficient. These toilets have two levers – one lever for liquids and the other for solids. The liquid lever uses half the water used in standard low-flush toilets. These new efficient toilets use 20% less water per flush than an Ultra Low Flush Toilet (ULFT) saving an average of 2,250 gallons of water a year.

2. What is an Ultra Low Flush toilet (ULFT)?

Ultra-Low-Flush toilets use only 1.6 gallons per flush or less - savings of more than 60 percent every time it is flushed. Typical pre-1983 toilets use about 5-7 gallons of water per flush (gpf).

3. What is a High Efficiency Toilet (HET)?

An average, non-efficient toilet uses more than 2 gallons of water per flush (GPF). High Efficiency Toilets (HET) use 1.28 gpf, saving 19,000 gallons per year when replacing an average non-efficient toilet and 4,000 gallons per year when replacing a ULFT. More...

4. What is a High Efficiency Urinal (HEU)?

High efficiency urinals use less than half the amount of water per flush (gpf) compared to less efficient urinals.

5. What Is a Zero Water/Waterless Urinal?

The idea is simple. Zero water/waterless urinals do not require water to flush. They are designed to receive and move liquid waste (urine) through a lighter than water sealant that floats on top on the urine, allowing the urine to move into the sewer system without the use of water.

6. What Is a Cooling Tower?

A cooling tower is a large hollow structure open at each end used to cool water heated during industrial processes. Water is cooled circulating it through a series of louvers and baffles through which cool air as it falls through the open air. A natural or mechanical draft moves the extracted heat from the water upwards and pulls cooler air into the tower at its base.

7. What is a Pressure Assist Toilet?

Pressure-assist toilets use compressed air to create a more forceful flush action. These toilets take advantage of the pressure of the home's water supply to get the job done, with the help of a pressure tank. Water from the supply line is forced into the air-filled pressure tank at the house pressure of 60 psi or so. The air in the tank is compressed and when the flush lever is pushed, the water rushes into the bowl. One benefit of a pressure-assist flush is that the water is contained inside the pressure tank, which is inside the china toilet tank.