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How to Replace the Bib Washer in an External Faucet

By Edited Nov 13, 2013 0 1

Faucet 1
Like most everything in a home a bib or compression washer in an outdoor or external faucet can wear out and need to be replaced. The first indication that a washer is wearing out and needs replacing is there is a slow drip of water from the faucet even when the faucet is completely turned off. External faucets work basically by screwing down a handle, thereby closing a washer disk onto a seating in the valve. Replacing a washer that is wearing out is easy and straight forward. The whole job takes only about 10 minutes. Replacement washers are available individually or in kits at home centers, hardware stores, discount stores such as Wal-Mart and even grocery and drug stores. I recommend purchasing a small assortment package that contains the most common sizes that are found in faucets around the home.

Things You Will Need

Wrench (open end or adjustable), Phillips or flat blade screwdriver, Teflon pipe tape, Replacement washer, Vaseline or silicone grease

Step 1

Faucet water shut off

The first step is to turn off the water supply upstream of the faucet. Usually the best place to turn off the water is at the valve located on the house side of the water meter. Sometimes there is a shut-off valve located in the basement for the individual outside faucet. Turn the faucet on to make sure the water is off.

Step 2

faucet parts and tools

Open the faucet completely. While holding the faucet in place with a wrench or large pair of adjustable pliers, remove the valve assembly by using an adjustable or open end wrench on the section below the compression nut. (The compression nut is the nut just below the handle.) Many houses in colder climates have freeze proof outdoor faucets that have valve stems that are 12 to 15 inches in length to keep the water in the warmer areas of the house to prevent freeze damage. In warmer regions the valve stems are only a few inches long. The seating washer (compression washer) is located at the end of the valve stem. Remove the retaining screw holding the washer and use a small flat blade screwdriver to pry the old washer out. Replace the washer with a new one of the same size and shape. Replace the retaining screw tightening it with a screwdriver.

Step 3

Make sure that the handle of the valve is opened completely. Wrap Teflon pipe tape on the outer threads of the valve assembly. Reassemble the faucet by screwing the valve assembly into the fixture and tighten it with the adjustable wrench. Be sure to hold the faucet in place where it connects the building while tightening the valve assembly.

Step 4

outdoor faucet

Turn the water supply on. If the faucet is leaking around the packing nut try to gently tighten the nut. If the leaking does not stop, the packing washer or graphite string will have to be replaced. Turn the water supply off and remove the handle. Loosen and remove the packing nut. Replace the packing washer with another packing washer or graphite string and retighten the packing nut. Replace the handle and turn the water supply back on to check for leaks.

Replacing a washer that is wearing out is easy and straight forward. The whole job takes only about 10 minutes. So practice your DIY skills and save yourself money by replacing the washer without having to pay for a professional plumber.

Tips & Warnings

There are inner threads on the valve stem that can be lubricated with Vaseline or silicone grease to help make the faucet turn easier.



Feb 10, 2010 6:16pm
Helpful information on fixing the outdoor faucet.
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