What is a primary benefit of implementing water reuse systems in buildings?

Implementing water reuse systems in buildings offers the significant advantage of reducing demand on potable water supplies. This is crucial as potable water is often a limited and increasingly scarce resource, especially in urban environments where water consumption is high. By utilizing alternative water sources—such as graywater from sinks and showers or collected rainwater—for non-potable uses, buildings can significantly decrease their reliance on treated drinking water.

This reduction in demand not only helps to conserve the valuable potable water supply but also contributes to lower water treatment and distribution costs over time. Additionally, such systems support overall sustainability goals, encouraging responsible water management and promoting environmental stewardship.

The other options presented do not align with the benefits of water reuse systems. Increased indoor water use and higher utility bills would be counterproductive outcomes, while increased maintenance needs, if they arise, are typically outweighed by the advantages of conservation and efficiency gained through effective water reuse strategies.