Quick Answer: A dripping faucet is usually caused by a worn cartridge, O-ring, valve seat, or washer inside the faucet body. While a single drip seems minor, it can waste over 3,000 gallons of water per year. Replacing the internal components or the entire faucet is a straightforward repair for a licensed Indianapolis plumber.
That slow drip from the kitchen or bathroom faucet is easy to ignore. You tighten the handle a little harder, maybe shove a towel under the spout, and move on with your day. But a faucet that drips once per second wastes roughly 3,000 gallons of water per year according to the U.S. Environmental Protection Agency. In Indianapolis, where water and sewer rates continue to rise, that adds up to real money on your utility bill.
More importantly, a drip that does not stop is telling you that something inside the faucet has failed. Ignoring it does not make it better. It makes it worse.
The Most Common Cause: A Worn Cartridge or Washer
Every faucet has internal components that control the flow of water. In single-handle faucets (the most common type in Indianapolis homes built after the 1990s), a cartridge sits inside the handle body and controls both temperature and flow. When the rubber seals on that cartridge wear out, water seeps past even when the handle is fully closed.
In older two-handle faucets, each handle has a stem with a rubber washer at the base. That washer presses against a brass valve seat to stop the flow. Over time, the washer compresses, hardens, or cracks, and the seal is no longer watertight.
Indianapolis hard water accelerates this wear significantly. Mineral deposits from calcium and magnesium build up on the cartridge, valve seat, and seals, grinding down rubber components faster than they would in a soft-water area.
Corroded Valve Seat
The valve seat is the stationary metal surface inside the faucet body that the washer or cartridge seals against. If mineral buildup or corrosion pits the surface of the valve seat, even a brand-new washer will not create a tight seal. The drip continues.
A plumber can resurface a corroded valve seat with a specialized seat grinding tool or replace it entirely. This is a common fix that resolves drips that persist after a cartridge or washer replacement.
Worn O-Rings
O-rings are small rubber rings that seal connections inside the faucet body and at the base of the spout. When they degrade, water leaks from around the base of the faucet or from the handle area rather than from the spout itself. If water pools around the base of your faucet every time you use it, a failed O-ring is the likely culprit.
When to Repair vs. When to Replace
If your faucet is less than 10 years old and the drip started recently, a cartridge or washer replacement is typically all it needs. Parts are available for most major brands and the repair takes a licensed plumber less than an hour.
If the faucet is older than 10 to 15 years, has a corroded valve seat, or has been repaired multiple times, replacing the entire faucet is usually the better investment. A new faucet comes with fresh internal components, a manufacturer warranty, and better water efficiency.
Faucet replacement falls under the scope of the toilets, faucets, sinks, and more service that DW Plumbing provides across Indianapolis and surrounding counties.
The Drip and Hard Water Connection
If faucets throughout your home are developing drips at a similar rate, the common factor is your water quality. Indianapolis hard water chews through faucet internals faster than soft water, and the only way to slow that cycle is to address the water chemistry upstream with a water filtration system or water softener.
We broke down the decision between a softener and a filter in our post on water softener vs. water filter for Indianapolis homes.
Do Not Ignore the Drip
Beyond the wasted water and higher utility bills, a persistent drip can stain sinks, damage countertops, and promote mold growth in the cabinet below. What starts as a minor annoyance becomes a fixture replacement, cabinet repair, and mold remediation project.
Call DW Plumbing at 317-500-1009 to fix that drip for good. Upfront pricing, same-day appointments, and a lasting repair from licensed Indianapolis plumbers.
