A faucet that drips once every few seconds can be easy to ignore, especially when it is not causing a visible puddle. But that steady sound usually means a worn internal part is no longer sealing properly. Knowing how to stop a dripping faucet can save water, prevent cabinet damage, and help you catch a larger plumbing issue before it becomes an urgent repair.
Most faucet drips can be traced to a washer, cartridge, O-ring, valve seat, or loose connection. The right repair depends on the faucet type and where the water is appearing. Start with a careful diagnosis, work slowly, and do not force parts that are corroded or stuck.
First, Find Where the Faucet Is Leaking
A drip from the end of the spout when both handles are off is different from water collecting around the handle or beneath the sink. The location tells you which components deserve attention.
When water drips from the spout, the faucet is usually not shutting off completely. On a two-handle faucet, a worn washer or damaged valve seat is often the cause. On a single-handle model, the problem may be a worn cartridge, ball assembly, or ceramic disc.
Water around the base of the handle usually points to a deteriorated O-ring, packing nut, or cartridge seal. If the countertop stays dry but the cabinet below the sink is damp, look for loose supply-line connections, a leaking shutoff valve, or a failing drain connection instead. Tightening a faucet handle will not solve an under-sink leak.
How to Stop a Dripping Faucet Safely
Before taking anything apart, close the shutoff valves under the sink. Turn each valve clockwise until it stops, then turn on the faucet to confirm the water is off and release pressure from the lines. If a shutoff valve will not close or starts leaking when you touch it, stop there. A failed valve can quickly turn a small faucet repair into a water-damage problem.
Plug the sink drain with the stopper or cover it with a cloth. Screws, clips, and small washers can disappear down the drain in seconds. Lay a towel in the sink to protect the finish from dropped tools and keep the parts in the order you remove them.
For most faucet repairs, you will need:
- An adjustable wrench or tongue-and-groove pliers
- A Phillips and flat-head screwdriver
- Replacement washers, O-rings, or the correct faucet cartridge
- Plumber’s grease and a clean rag
Avoid using excessive force. Mineral buildup is common in Tampa Bay plumbing fixtures, and forcing a seized nut can crack the faucet body, twist a supply line, or damage the countertop.
Repairing a Two-Handle Compression Faucet
A traditional two-handle faucet commonly uses a rubber washer at the bottom of each stem. Remove the decorative cap on the handle, take out the handle screw, and lift the handle off. You may need to loosen a retaining nut before removing the stem assembly.
At the bottom of the stem, inspect the rubber washer and the small screw holding it in place. A washer that is flattened, cracked, hard, or misshapen should be replaced with one of the same size. Also inspect the O-ring around the stem if water has been leaking near the handle.
Before reinstalling the stem, look down into the faucet body at the valve seat. If it looks rough, pitted, or corroded, a new washer may not seal for long. Some valve seats can be removed and replaced, while others require specialized tools. This is a common point where professional service is the better value, particularly if the faucet is older or the parts are difficult to identify.
Repairing a Single-Handle Cartridge Faucet
Many kitchen and bathroom faucets use a replaceable cartridge rather than separate hot and cold stems. Start by removing the handle screw, which may sit under a cap or behind the lever. Lift off the handle, then remove the retaining clip or nut holding the cartridge in place.
Take a photo before pulling the cartridge out. The orientation matters, and installing it backward can reverse hot and cold water. Bring the old cartridge to a hardware store when possible, or use the faucet brand and model number to match the replacement exactly.
Clean away mineral deposits from the cartridge chamber with a rag. Apply a small amount of plumber’s grease to compatible rubber O-rings, then install the new cartridge in the same position as the old one. Reassemble the handle, restore the water slowly, and test both temperature settings.
A cartridge replacement is often straightforward, but it depends on the fixture. Some cartridges are held in place by corroded clips or have proprietary parts that are not easily available. If the cartridge will not move with gentle, even pressure, do not pry aggressively against the faucet body.
What About Ball and Ceramic Disc Faucets?
Ball-style faucets have several small seals, springs, and a rounded ball mechanism under the handle. Ceramic disc faucets use two hard ceramic discs that control water flow. Both can drip when seals wear out or debris scratches the sealing surfaces.
These repairs are manageable for a careful homeowner, but they require the correct repair kit and close attention to how every part fits together. If you mix up springs, damage a seal, or reinstall a disc assembly incorrectly, the faucet may leak worse than before. For a fixture that is expensive, built into a stone counter, or connected to a pull-down sprayer, a licensed plumber can diagnose the issue without putting the faucet or surrounding finish at risk.
Do Not Forget the Aerator and Water Pressure
A clogged aerator generally does not cause a faucet to drip after it is turned off, but it can make water flow unevenly and create splashing that looks like a leak. Unscrew the aerator at the end of the spout, rinse out sediment, and soak it in a vinegar solution if mineral scale is present. Reinstall it carefully so the screen and gasket sit flat.
If several fixtures in the building drip, bang, or produce unusually high water flow, the problem may extend beyond one faucet. High water pressure can stress cartridges, washers, supply lines, and appliance hoses. Property managers and business owners should take repeated fixture failures seriously, since the underlying issue may affect multiple units or restrooms.
Test the Repair Before Putting Tools Away
Once the faucet is reassembled, turn on the shutoff valves slowly. Check beneath the sink first, then run hot and cold water for a minute. Turn the faucet off and watch the spout for several minutes. A little water draining from the spout immediately after use can be normal, especially on a pull-down kitchen faucet. Continued drops are not.
Also check around the handle base and supply lines with a dry paper towel. This simple step can reveal a slow leak before it damages the cabinet floor. If the faucet still drips, the replacement part may be the wrong size, the valve seat may be damaged, or the fixture may have internal corrosion that makes repair unreliable.
When a Dripping Faucet Needs a Plumber
Call for professional help when the shutoff valves do not work, the faucet is seized or cracked, water is leaking below the sink, or the drip continues after replacing the obvious worn part. You should also call if a leak has reached cabinetry, flooring, or the wall behind the fixture. Those situations need a prompt inspection, not repeated tightening.
For Tampa Bay homeowners, landlords, and businesses, Royal King Plumbing can provide fast diagnosis and clear repair options for leaking faucets, damaged valves, and under-sink plumbing problems. A licensed plumber can determine whether a targeted part replacement will last or whether an aging fixture is more economical to replace.
A quiet faucet is more than a small convenience. Once the drip stops, take a moment to check the cabinet below, test the shutoff valves, and make sure every connection is dry. That extra minute can protect your property from the next leak waiting out of sight.
