You did the responsible homeowner thing. You noticed the outdoor spigot dripping, you shut off the water, you pulled the stem, and you swapped in a shiny new rubber washer. Twenty minutes of work, mild sense of accomplishment. Then you turn the water back on and it’s still leaking. Sometimes worse than before. Annoying, right?
Here’s the thing nobody tells you at the hardware store: the washer is only one of about four places a hose bib can fail, and by late July, after a full season of hose-dragging, sprinkler-hooking, and kids leaving it half-open, the odds that it’s ONLY the washer start dropping fast.
The Packing Nut Is Probably Loose
Right behind the handle, there’s a hex-shaped nut called the packing nut. It compresses a little washer or packing material around the stem to keep water from seeping out backward when the valve is open. If your leak shows up while the water is running, not when it’s shut off, this is almost always the culprit. Grab a wrench and give that packing nut a quarter turn clockwise. Don’t crank it like you’re tightening a lug nut, just snug it. If it’s still weeping after that, the packing itself is worn out and needs replacing, which is a cheap part but does mean pulling the whole stem assembly.
The Seat Inside the Valve Body Is Trashed
This is the one that fools people. You replace the washer, everything looks fine, but the valve seat, the little brass or bronze ring the washer presses against, is pitted or corroded from years of mineral-heavy water and grit. A perfect new washer sitting against a chewed-up seat still won’t seal. If you can see grooves or rough spots when you shine a flashlight into the valve body, that’s your answer. Some hose bibs let you replace the seat with a seat wrench; a lot of the cheaper builder-grade ones don’t, and at that point you’re better off replacing the whole spigot rather than fighting it.
It Might Not Be the Faucet at All
If you’ve got a frost-free sillcock, the long-bodied kind common in colder climates, the actual shutoff valve isn’t at the handle, it’s a foot or more back inside the wall, angled downward. Water traveling that whole distance means a leak at the handle end could actually be a failed vacuum breaker up top, or worse, a cracked stem tube you can’t see from outside. If tightening the packing nut and swapping the washer haven’t solved it, and water seems to be sitting inside the pipe rather than draining out after you shut it off, that’s a sign the internal valve isn’t seating right, and it’s worth reading through a good rundown on how frost-free sillcocks are built before you go further, because diagnosing them from the outside is genuinely tricky.
Also Check the Hose Connection Itself
Sometimes the leak isn’t the faucet leaking at all, it’s water spraying out from where the hose threads onto the spigot. A cracked rubber gasket inside the hose end causes this constantly, and people chase the faucet for weeks before realizing the fix cost about two dollars. Keep a small pack of rubber hose washers on hand; a hose washer gasket set solves more mystery drips than people expect.
When to Just Replace the Whole Thing
If your spigot is the old-style straight bib without a frost-free design, and it’s original to a house built before, say, 2005, honestly, just replace it. They’re not expensive, the labor is maybe 30 minutes if the shutoff behind it is accessible, and a frost-free sillcock will save you the winter freeze-and-crack drama too. Trying to nurse a corroded 20-year-old valve back to health with washers and packing tape is a losing game. Sometimes the fix isn’t fixing it at all, it’s admitting the part is done and moving on.
