Step-by-step fix
Step 1: Confirm the packing washer is the problem
- Look closely at where the leak starts.
- Turn the hose bib on partway and then fully on.
- If water seeps or sprays from around the handle stem or packing nut, this repair is a good match.
- If water only drips from the spout when the faucet is off, the problem is more likely the stem washer or valve seat, not the packing washer.
If it works: You have confirmed the leak is coming from the stem area behind or below the handle.
If it doesn’t: If the leak is from the spout, switch to a stem washer or full stem repair instead of replacing the packing washer.
Stop if:- The faucet body is cracked.
- The pipe behind the wall or siding is moving when you touch the faucet.
- Corrosion is so severe that the packing nut or stem looks ready to break.
Step 2: Shut off water and open the faucet
- Find the shutoff serving the hose bib, if there is one, and turn it off.
- If there is no local shutoff, turn off the home's water supply.
- Open the hose bib to relieve pressure and drain the remaining water.
- Place a rag under the faucet to catch drips and protect the finish.
If it works: The faucet is depressurized and no longer pushing water out under pressure.
If it doesn’t: If water keeps flowing strongly, the shutoff is not fully closed or is not the correct shutoff.
Stop if:- You cannot stop the water flow enough to work safely.
- The shutoff valve itself starts leaking heavily or will not operate.
Step 3: Remove the handle and loosen the packing nut
- Remove the screw holding the handle and pull the handle off the stem.
- Use the adjustable wrench to loosen the packing nut behind the handle.
- Back the packing nut off carefully so you can access the old packing washer or packing material around the stem.
- Keep the parts in order as you remove them.
If it works: The handle is off and the packing area around the stem is exposed.
If it doesn’t: If the handle is stuck, wiggle it gently and apply steady pressure instead of prying hard against the faucet body.
Stop if:- The stem or packing nut starts twisting the whole faucet in the wall.
- A part cracks while loosening it.
Step 4: Remove the old packing washer and clean the stem area
- Use needle-nose pliers or a small screwdriver to remove the old packing washer or old packing material from the nut and stem area.
- Wipe away mineral buildup, grit, and old grease from the stem, packing nut, and sealing surfaces.
- Check that the stem is not deeply grooved where the packing seals against it.
If it works: The old packing material is out and the sealing area is clean enough for the new part to seat properly.
If it doesn’t: If you cannot remove all of the old material, keep cleaning gently until the new washer can sit flat and evenly.
Stop if:- The stem is deeply scored, bent, or badly corroded where the packing seals.
- The packing nut threads are stripped or damaged.
Step 5: Install the new packing washer and reassemble
- Compare the new hose bib packing washer to the old one for size and shape.
- Set the new washer or packing into the packing nut or around the stem in the same position as the original part.
- Apply a light smear of plumber's grease to the stem threads if needed, but do not pack the area with grease.
- Thread the packing nut back on by hand first, then snug it with the wrench.
- Reinstall the handle and handle screw.
If it works: The new packing washer is installed and the faucet is reassembled without cross-threading.
If it doesn’t: If the nut will not thread on smoothly by hand, back it off and realign it before tightening again.
Stop if:- The replacement part is clearly the wrong size.
- The packing nut will not tighten because the threads are stripped.
Step 6: Restore water and test the repair under real use
- Turn the water supply back on slowly.
- With the hose bib off, check for leaks around the packing nut and handle stem.
- Open the faucet fully and watch the stem area for seepage.
- If you see a slight leak at the stem, tighten the packing nut a little at a time until the leak stops and the handle still turns normally.
- Run water for a minute, then shut the faucet off and check again.
If it works: The hose bib runs without leaking around the handle stem, and the repair holds while the faucet is on and after it is shut off.
If it doesn’t: If the stem still leaks after a small packing nut adjustment, the stem, packing nut, or another internal seal may be worn and need further repair or replacement.
Stop if:- Tightening the packing nut does not reduce the leak.
- The handle becomes extremely hard to turn.
- Water starts leaking from the wall, siding, or pipe connection instead of the stem area.
Replacement Parts
Repair Riot may earn a commission from qualifying purchases, at no extra cost to you.
FAQ
What does a hose bib packing washer do?
It seals around the valve stem so water does not leak out around the handle when the faucet is open.
How do I know if I need a packing washer instead of a stem washer?
If the leak is around the handle or packing nut while the faucet is on, suspect the packing washer. If the faucet drips from the spout when fully off, suspect the stem washer or valve seat.
Can I just tighten the packing nut instead of replacing the washer?
Sometimes a small tightening adjustment will stop a minor stem leak. If the leak comes back or the nut is already snug, the packing washer is likely worn and should be replaced.
Do I need to turn off the whole house water?
Only if there is no local shutoff for that hose bib. If a nearby shutoff isolates the faucet, that is usually enough.
What if the new packing washer does not stop the leak?
The stem may be worn, the packing nut may be damaged, or the leak may be coming from another part of the faucet. At that point, a stem rebuild or full hose bib replacement may be the better repair.