LEED Green Associate Practice Test

What is the significance of using waterless fixtures in a building?

1. They economize on energy usage

2. They reduce the need for plumbing

3. They significantly reduce indoor water use

4. They require no maintenance whatsoever

The correct answer is: They significantly reduce indoor water use

Using waterless fixtures is significant primarily because they significantly reduce indoor water use. By eliminating or minimizing the need for water in certain fixtures—such as urinals or toilets—these systems directly contribute to water conservation efforts, which is essential for sustainability and reducing the overall environmental impact of a building. This reduction in water usage not only benefits the environment by conserving a vital resource but also can lead to lower utility costs for building occupants. While waterless fixtures may also result in some energy savings and can reduce plumbing requirements, these aspects are secondary to their primary role in conserving water. The assertion that they require no maintenance is not entirely accurate, as maintenance is still needed to ensure optimal operation and cleanliness. Therefore, the focus on their role in reducing indoor water use aligns most closely with the goals of water efficiency in sustainable building practices.