how to install water filter

    Published: June 23, 2016

    How to Install an Under Counter Water Filter

    If you’ve put off purchasing an under counter water filter because installing the system sounds too difficult, you’re not alone. I avoided the project for months because, when it comes to home DIY, I’m a one-man disaster. My local plumber and electrician get rich cleaning up my messes, so I was surprised to discover the installation process for an under counter filter is actually quite simple. With some basic tools you can have crisper, cleaner water on-tap in exchange for a couple of hours’ worth of work. Here’s how to do it.

    Step One

    Turn off the cold water supply. Place a bucket under the water supply, and disconnect the supply line, using the bucket to catch any water in the supply line.

    Step Two

    Attach the filtration system’s angle stop value or T-adapter to the cold water supply line and shut off value. If your system provides a T Adapter, you’ll need a wrench to tighten it securely. The angle stop valve provided with Pelican’s PDF Series Premium Under Counter Filter only needs hand-tightening.

    Step Three

    Slide the faucet cover hole and rubber washer onto the faucet, and drop the faucet hoses through the soap pump or sprayer nozzle hole on your sink. If your sink doesn’t come with a soap pump hole, you’ll need to drill a hole through the sink with a hole saw drill bit. Here’s how to do that:

    • Mark the center of the hole on the sink with painter’s tape.
    • Using nail or awl and hammer, make a divot in the center of the hole. This prevents the drill saw from “walking” during the drilling process.
    • Lubricate the drilling area with 3 in 1 oil.
    • While wearing safety glasses, drill a 7/8 of an inch-wide hole in the sink. Drill slowly and steadily for the best finish.

    Step Four

    Thread the faucet nut on the faucet stem, using a wrench to tighten. Be sure not to overtighten.

    Step Five

    If you’re installing a Pelican PDF Series Premium Under Counter Filter, push the blue hose from the filter faucet into the speed fit side of the angle stop valve, pulling back gently to ensure a proper seal. The procedure is much the same if you’re installing a filter with a T adapter, and does not need a wrench.

    Step Six

    Using a pencil, mark where you want to mount the filter bracket on the inside of the cabinet, and securely screw the bracket to the wall.

    Remove the casing from the filter and pull the plastic tab around the battery to activate the filter sensor, then reattach the casing and slide the system into the mounting bracket according to manufacturer’s instructions. The PDF Series filter, for instance, attaches to the bracket upside down.

    Step Seven

    Attach the in hose to the filter’s in cap, and the out hose to the out cap (a minor, but important distinction I came very close to messing up). Check all connections and turn on the water shut off valve, checking for leaks as you do so.

    Step Eight

    Turn on the faucet and let it run for ten minutes to flush out and activate the filter.

    Step Nine

    Pour yourself a tall, cool glass of crisp, tasty filtered water. Congratulate yourself on a job well done. My wife had to stop me from calling the plumber and yelling triumphantly into the phone, which is probably for the best.