How to Fix a Leaking Compression Faucet

A compression faucet is one with two different handles for hot and cold water. A non-compression faucet just has one handle for hot/cold water. These two different styles are not made alike. One of the most common problems with a compression faucet is a water leak.

Things You'll Need

• Wrench
• Screwdriver
• Good lighting or flashlight
• Valve seat dressing tool
• Faucet washer
• O-ring
• Packing string
• Steel wool

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Instructions

1. Turn off the main water valve to this faucet. Make sure all the materials that you need will fit your model of faucet. Take the faucet apart, laying everything aside in the order you remove it. Do not remove all of this, but this is the rundown order of repair (thus use this as a fixing guide): Knob cap, screw, handle, packing nut, stem, plastic o-ring, seat washer, rubber washer, valve seat, plastic inlet seal and metal washer.

2. Replace o-ring and washer. Use the end of your screwdriver to pull the old o-ring off if necessary. Roll the new o-ring over the stem, placing it on just like the old one. O-ring must be the proper size for an accurate seal. Screw the old washer off. Use steel wool to rub the stem and seat area clean. Screw a new one on, tightening carefully.

3. Replace packing. With your packing nut in hand, remove the now visible washer. You may need to use a screwdriver or another tool end to poke it out. Take the old packing string off of the stem. Replace the old string with new string. Put a new packing nut on the stem. Tighten it, but be careful not to tighten too much.

4. Smooth the old valve seat. Use the valve seat-dressing tool, putting it straight down into the hole of your faucet. Turn the top of this tool slowly, right or clockwise a couple of times while also applying a bit of descending pressure. Tool will turn smoother when done.

5. Put the faucet back together how it was when you removed it. Go by the removal guide if you are having trouble remembering the assembly order. Turn the main water valve back.

Tips & Warnings

• When using the wrench to remove the packing nut, use something to cover the metal area to avoid scratching the fixture.

• While doing this repair, replace any other worn pieces that you notice.

• Do the repair when no one else will be in need of this faucet.