Which of the following describes the steps to link a water softener?

Linking a water softener involves several critical steps to ensure it is properly connected and functional within a water treatment system. This process typically includes connecting the water supply to the softener, linking the drain for wastewater removal, establishing the brine connection for regeneration, and providing electrical power to operate the system.

Each of these components plays a vital role: the water supply is necessary for the softener to treat incoming hard water; the drain is essential for discharging the brine solution and wastewater generated during regeneration; the brine connection allows the softener to draw the necessary salt solution for the ion exchange process; and the power connection activates the control settings and operational mechanisms of the unit.

This thorough linkage ensures that the water softener functions effectively, providing treated water throughout the system. The other choices, while related to different aspects of water treatment, do not directly pertain to the specific steps required to connect a water softener.