Why Does My Faucet Keep Dripping?

You turned the handle off. You turned it off harder. And the faucet is still going — that slow, steady tap… tap… tap into the sink that you can hear from the next room at night. A faucet that drips when it’s supposed to be fully closed is one of the most common calls we get, and the good news is that the cause is almost always a small, worn part rather than anything wrong with your plumbing as a whole.

Here’s what’s actually happening inside that faucet, why cranking the handle harder never fixes it, and how to tell whether it’s a ten-minute part swap or a job worth handing off.

It’s the valve, not the handle

Every faucet works the same basic way: turning the handle moves an internal part that presses a seal against a seat to stop the water, and lifts it away to let water flow. When a faucet drips even though the handle is all the way off, that seal isn’t sealing anymore. Something between the moving part and the seat has worn, cracked, or crusted over, and water is finding its way past.

That’s why muscling the handle shut doesn’t help — and often makes it worse. You’re not tightening a loose connection; you’re grinding a worn seal harder into a seat that’s already damaged. Over-tightening is one of the fastest ways to turn a minor drip into a faucet that won’t shut off at all.

The usual suspects

A few worn-out parts cause the vast majority of dripping faucets:

• A worn rubber washer or seal. On older two-handle faucets (the kind with a separate hot and cold), a rubber washer presses against a metal seat every time you shut the water off. Rubber flattens and cracks with use, and once it does, it can’t make a tight seal. This is the classic dripping-faucet culprit.
• A worn or cracked cartridge. Most modern single-handle faucets use a cartridge — a replaceable insert that controls flow and temperature. When it wears out, the faucet drips, gets hard to turn, or won’t hold a steady temperature.
• Failed O-rings. The small rubber rings that seal moving parts inside the faucet dry out and crack over time, letting water seep past even when everything else is fine.
• A pitted or corroded valve seat. The metal seat the washer presses against can get rough or scaled over. Once the seat is chewed up, a fresh washer still won’t seal against it, and the seat itself has to be resurfaced or replaced.
• Hard-water mineral buildup. Much of the Oklahoma City metro runs moderately hard to hard water, and that scale collects inside faucet bodies and on cartridges, seats, and O-rings. It stiffens the moving parts and props seals open — which is a big reason faucets here tend to start dripping sooner than they might elsewhere.
• Water pressure that’s too high. If your home’s pressure runs above the normal range, that constant extra force finds the weakest seal in the house and pushes water past it. A faucet that drips worse overnight is a classic sign, because city pressure often climbs when demand across the metro drops off.

Which faucet do you have — and can you fix it yourself?

Before you buy any parts, figure out what kind of faucet you’re working with, because the fix is different for each:

• Compression faucets (two handles, and they tighten down as you close them) are the oldest style and usually the easiest and cheapest to rebuild — typically a new washer, seat, and O-rings.
• Cartridge, ball, and ceramic-disc faucets (most single-handle and newer two-handle models) are repaired by replacing the cartridge or internal assembly, matched exactly to the faucet’s brand and model.

If you’re comfortable doing it, a lot of drips are a genuine DIY job. The non-negotiable first step is shutting off the two stop valves under the sink — or the main if there are none — so you’re not fighting live water. From there it’s taking the handle apart, identifying the worn part, and bringing it to the store to match it precisely. Aftermarket “universal” parts that are close but not exact are a common reason a rebuilt faucet starts dripping again a week later.

Where it’s worth calling in a pro is when the valve seat is corroded, when parts are seized in place with years of mineral scale, when the faucet is old enough that replacement parts are hard to find, or when you rebuild it and the drip comes right back. At that point you’re usually better off with a clean repair or a new fixture than chasing the leak part by part. Our plumbing team can rebuild or replace the faucet and check whether high water pressure is quietly wearing out seals all over the house.

Why a little drip isn’t so little

It’s tempting to live with a drip, especially a slow one. But it’s worth taking care of for two reasons.

First, the water adds up. The EPA estimates that a faucet dripping at one drop per second wastes more than 3,000 gallons a year — you can read their fix-a-leak guidance here. That shows up on your bill, and in an Oklahoma summer, when water use is already high from sprinklers, gardens, and extra laundry, a nagging drip is easy to miss until the bill creeps up. A common call we get this time of year is a homeowner who finally chased down a bathroom faucet that had been dripping for months, only after the summer water bill nudged them to look.

Second, drips don’t hold steady — they grow. The same wear that started the leak keeps going, and hard water keeps building up, so a drip you ignore in July is a steady trickle by fall. Catching it early keeps it a simple repair.

The bottom line

A dripping faucet almost never means something is wrong with your plumbing — it means a small internal part has worn out and stopped sealing. Turning the handle harder only speeds up the damage. Identify your faucet type, shut off the water, and match the exact replacement part, and many drips are a satisfying DIY fix. If the seat’s corroded, the parts are scaled solid, or the drip keeps coming back, that’s the point to bring in a plumber rather than keep guessing.

Triple Play Home Services fixes dripping and worn-out faucets across Edmond, Oklahoma City, and the surrounding metro — with flat-rate pricing you approve up front, before any work begins. Call (405) 500-5333 and we’ll stop the drip for good.