Before starting the installation of water treatment equipment, what should be done first?

Before starting the installation of water treatment equipment, shutting off the water main is essential for ensuring the safety and efficiency of the installation process. By turning off the water supply, technicians can prevent water from flowing through the pipes while they work, which minimizes the risk of leaks or water damage during installation. This step is crucial because it creates a controlled environment to work in, allowing for a safer handling of tools and equipment without the worry of water pressure or flow complicating the procedure.

While notifying the homeowner is important for communication, and checking the water quality is necessary for understanding the existing issues that need to be addressed, these actions can be done concurrently with or after the water is shut off. Preparing installation tools is also a critical task, but it should come after ensuring that the water supply is securely turned off to facilitate a safe and efficient installation environment.