How to add a dedicated filtered water faucet to your existing kitchen sink setup

How to Install a Water Filter With A Separate Faucet | This Old House · 4:36 · Video: This Old House · Watch at the source

In short: Plumbing expert Richard Trethewey demonstrates the process of installing a water filtration system that provides clean, filtered water directly from a separate faucet at your kitchen sink. This guide outlines the essential tools and components required to complete the installation successfully.

Installing a separate faucet for a water filtration system requires specific tools to modify your existing sink. To create the necessary mounting hole in a stainless steel sink, a slug cutter—also known as a knock-out punch—is required. The installation process also utilizes an electric drill with a 3/8-inch-diameter bit, a drill/driver with a 1/8-inch-diameter bit, and a ratcheting box-end wrench to secure the hardware.

The project relies on a dedicated water filter and cartridge assembly to ensure water quality. By following these steps, homeowners can integrate a secondary water source into their kitchen plumbing, providing filtered water independently of the main faucet.

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