What is the primary purpose of an aerator in water systems?

The primary purpose of an aerator in water systems is to reduce water usage. Aerators are devices that are typically installed in faucets and showerheads to mix air with the water, creating a pressurized flow that feels stronger while using less water. By incorporating air, they allow for a lower volume of water to be used without compromising the perceived quality of the water flow. This not only helps in conserving water, which is vital in efforts to manage water resources sustainably, but also decreases water and energy bills for households.

The other options touch on different functions that a water system might benefit from, but they don't align with the primary function of an aerator. For example, while filtering chemicals or improving clarity are important for water quality, those tasks are typically handled by filtration systems rather than aerators. Additionally, increasing water temperature is not a function of an aerator, which focuses specifically on flow rate and aeration rather than heating. Thus, reducing water usage stands out as the key objective of aerator installation in water systems.