Your Bathtub Faucet Is Dripping. Here's What's Wrong and What to Do About It

That steady drip from your bathtub faucet might seem like a minor annoyance, easy to tune out, easy to put off. But a dripping tub faucet is telling you something important: the internal components that control water flow are worn, damaged, or failing. And unlike many plumbing problems, a dripping faucet doesn't stay mild. The underlying wear only gets worse over time, and what starts as a slow drip can escalate into a faucet that won't fully shut off.

There's also the water waste to consider. A faucet dripping at just 1 drip per second wastes more than 3,000 gallons of water per year, enough to fill a standard bathtub more than 50 times. In Atlanta, where water rates have climbed steadily, that shows up on your bill.

Here's what's actually causing your bathtub faucet to drip, how to tell which type of faucet you have, and when to call a licensed plumber.

First: Know What Type of Bathtub Faucet You Have

The cause of your drip, and the fix, depend heavily on the type of faucet installed. Atlanta homes have a wide mix, depending on when they were built:

• Two-handle faucets (one for hot, one for cold): Most common in homes built before the 1990s. These use compression stems or cartridges inside each handle. Very common in Atlanta's older Cobb, DeKalb, and Fulton County housing stock.
• Single-handle faucets: One handle controls both temperature and volume. These use a cartridge or ball mechanism and are standard in most homes built or renovated since the 1990s.
• Three-handle faucets: Two handles for hot/cold, plus a separate diverter handle to switch between the tub spout and showerhead. Found in older homes and certain vintage tile bath configurations.

The location of the drip also matters; water coming from the spout when the faucet is off points to worn internal valve components, while water escaping around the handle or behind the wall indicates a different type of failure entirely.

Cause #1: A Worn or Damaged Cartridge

In most modern single-handle and many two-handle tub faucets, a cartridge, a self-contained valve unit inside the faucet body, controls water flow. The cartridge has internal seals and O-rings that press against the valve seats to prevent water flow when the handle is turned off.

Over time, these seals wear down from the friction of daily use, mineral deposits from Atlanta's moderately hard water, and the natural aging of rubber components. Once the seals no longer form a tight seal, water seeps past and drips from the spout even when the handle is in the off position.

Cartridge failure is the single most common cause of a dripping tub faucet in Atlanta homes. Signs that point specifically to cartridge wear include:

• A drip that gets worse gradually over weeks or months
• The handle feels slightly loose or requires more force to fully shut off
• Water temperature that's hard to control precisely
• Dripping that continues for several minutes after shutting off the faucet before stopping

Cartridge replacement is a standard faucet repair service in Atlanta. A licensed plumber can identify the correct cartridge for your brand (Delta, Moen, Kohler, American Standard) and replace it in a single visit.

Cause #2: A Worn Seat Washer or Compression Stem (Older Two-Handle Faucets)

If your bathtub has an older two-handle configuration, particularly common in Atlanta homes built in the 1960s through 1980s, the faucet likely uses a compression valve rather than a cartridge. In this system, a rubber seat washer at the bottom of the stem presses against a metal seat to stop water flow when the handle is tightened.

These washers compress whenever you turn the faucet off, which causes mechanical wear with every use. When the washer degrades, it can no longer form a complete seal against the seat, allowing water to drip through. In some cases, the metal seat itself becomes pitted or corroded. Atlanta's water chemistry can accelerate this, meaning a new washer alone won't fully solve the problem until the seat is also resurfaced or replaced.

A tell-tale sign of compression valve wear: the drip is worse on one side (hot or cold) than on both, and the affected handle gradually requires more tightening to stop the drip before eventually failing to stop it altogether.

Cause #3: Failed O-Rings

O-rings are small rubber rings installed at various points along the valve stem and cartridge to prevent water from leaking past the sides of the faucet mechanism. They're distinct from the seat washer; their job is to seal the stem itself, not the flow path.

When O-rings fail, the drip or leak often appears around the base of the handle or the spout collar rather than from the spout tip. You might notice water weeping around the handle when you turn it, or a wet ring at the base of the tub spout. This is different from a spout drip but equally worth addressing; water escaping behind the handle can work its way into the wall cavity over time.

O-ring wear is accelerated by mineral buildup, which is relevant in the Atlanta metro where water hardness varies by municipality but runs moderate across most of Cobb, Gwinnett, and Fulton counties.

Cause #4: A Faulty Diverter Valve

If water is dripping from both your tub spout and your showerhead simultaneously, or if water keeps trickling from the tub spout even when the diverter is engaged for the shower, the diverter valve is the likely culprit rather than the main faucet cartridge.

The diverter redirects water flow from the tub spout up to the showerhead. In three-handle configurations, it's a separate valve. In single-handle systems, it's typically a pull-up mechanism on the tub spout itself. When the diverter's internal seal wears out or the mechanism becomes clogged with mineral deposits, it can no longer fully redirect the flow, resulting in a split stream or a persistent trickle from the spout during showers.

This is worth distinguishing from a main cartridge or stem issue because the repair path is different. Our Atlanta faucet repair technicians can quickly identify whether the source is the diverter or the main valve — they're not always obvious without opening the fixture.

Why a Dripping Tub Faucet Gets Worse If You Wait

A dripping bathtub faucet is not a stable condition. Here's what happens when it's left unaddressed:

• Worn washers and cartridges continue to degrade with each use. What's a slow drip now can become a faucet that won't fully close within a few months
• Water constantly passing a damaged valve seat erodes the seat surface, potentially turning a simple washer replacement into a more involved valve seat repair or full valve replacement
• Mineral deposits from dripping water accumulate on the spout and surrounding tile, leading to staining and buildup that's difficult to clean
• In worst-case scenarios, a failing faucet mechanism can lead to a valve body that cracks under pressure, requiring replacement of the entire valve assembly, a much more significant repair than an early cartridge swap

The economics are straightforward: early repair costs far less than late repair, and late repair costs far less than the damage a fully failed valve can cause.

A Note on Atlanta Homes and Tub Faucet Wear

Many Atlanta-area homes, particularly in established neighborhoods across Marietta, Smyrna, Decatur, Tucker, and East Cobb, were built in the 1960s through 1980s and still have original or early-replacement tub valve systems. These older compression-style valves were not designed for continuous use over decades, and their components are often well past their engineered lifespans.

Hard water mineral deposits compound the issue. Calcium and magnesium in metro Atlanta's water supply gradually coat valve internals, stiffen O-rings, and pit metal valve seats, accelerating wear beyond what you'd see in softer-water markets. If your home is more than 20 years old and you've never had your tub faucet serviced, the drip you're hearing is almost certainly due to original components finally giving out.

What to Expect From a Professional Faucet Repair

When a Dalmatian technician arrives for a dripping bathtub faucet, the process is straightforward:

1. Identify the faucet type and brand; this determines which parts are needed and how the valve is accessed.
2. Shut off the water supply, either at the fixture shutoff valves (if present) or at the main shutoff.
3. Remove the handle and access the cartridge, stem, or valve internals.
4. Inspect the cartridge, seat washer, O-rings, and valve seat for wear or damage.
5. Replace worn components (cartridge, washer, O-rings), or reseat the valve seat as needed.
6. Reassemble, restore the water supply, and test for leaks.

We stock parts for all major faucet brands on every truck: Delta, Moen, Kohler, American Standard, and Price Pfister. This means most bathtub faucet repairs in Atlanta are completed in a single visit without a return trip for parts.

Stop the Drip and Call Dalmatian

A dripping bathtub faucet is one of the most straightforward plumbing repairs there is when it's caught before the underlying components deteriorate further. Dalmatian Plumbing's licensed technicians have the experience and parts to handle it right the first time.

With 75+ years of combined technician experience, same-day service across metro Atlanta, and 4.9 stars across 600+ Google reviews, we're the team Atlanta homeowners trust for faucet and fixture repairs in Marietta, Kennesaw, Smyrna, Alpharetta, Lawrenceville, and beyond.

Don't let a drip become a bigger problem. Visit our Atlanta faucet and fixture repair page or call us to schedule service.