How Do I Replace a Clogged Sink Drain?

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    • 1). Prepare your workspace underneath the clogged sink drain. If this is a bathroom sink, for example, remove any towels or cleaning supplies that might be stored beneath the drain.

    • 2). Place a bucket under the curved portion of the drain. Unscrew the two couplings at either end of the p-trap. Use a pair of channel lock pliers or plumbing wrench on metal, your hands on PVC. Pull the p-trap out of the plumbing and empty the water inside into the bucket.

    • 3). Unscrew the jamb nut, located directly beneath the drain, with the pliers or wrench. Pull this off the tail piece, followed by the rubber washer above.

    • 4). Unscrew the tail piece by turning it counterclockwise. Apply pipe thread compound to the threads on a new tail piece. Insert this into the underside of the drain flange in the sink above and screw in clockwise. Squeeze more pipe compound onto the threads of the drain extension. Slip the rubber washer and then the jamb nut over the end of the tailpiece until they are flush with the drain extension. Tighten in place.

    • 5). Clean off the threads on the end of the sewer pipe inlet with a piece of steel wool. Remove any traces of caulk or tape. Apply pipe thread to the sewer inlet threads.

    • 6). Slip the p-trap in place between the tail piece and the sewer inlet. Tighten with your hands or the pliers.

    • 7). Run the water in the sink and check for leaks. Tighten any couplings if necessary.

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