Toilet Overflowing or Won’t Stop Running? Here’s What Liberty Hill & Austin Homeowners Should Know

13 hours ago
4 min read

Few plumbing problems are more stressful than a toilet that suddenly starts overflowing or refuses to stop running.

One minute everything seems normal… and the next you’re scrambling for towels while water spreads across the bathroom floor.

At OnCall Plumbing, overflowing toilets and constantly running toilets are two of the most common emergency plumbing calls from homeowners in Liberty Hill, Austin, Leander, Bertram, Burnet, Marble Falls, Bastrop, and surrounding areas.

The good news is that some issues are simple fixes. Others may signal a bigger plumbing problem that should be addressed quickly before water damage or higher utility bills occur.

First: What To Do If Your Toilet Is Overflowing

If your toilet is actively overflowing, the priority is stopping the water immediately.

Step 1: Turn Off the Water Supply

Look behind the toilet near the floor for the shut-off valve.

Turn it clockwise until the water stops flowing.

This prevents additional flooding while you assess the issue.

Step 2: Avoid Flushing Again

Many homeowners instinctively try a second flush.

Unfortunately, this usually makes the overflow worse.

If the toilet bowl is already full or draining slowly, avoid flushing until the blockage is cleared.

Step 3: Clean Up Water Quickly

Overflowing toilets can damage:

Flooring
Baseboards
Cabinets
Drywall
Subflooring

Standing water can also create sanitation concerns.

The faster the cleanup begins, the better.

Why Toilets Overflow

There are several common causes of toilet overflows.

Toilet Clogs

The most common cause is a blockage in the toilet drain.

Common items that cause clogs include:

Excess toilet paper
“Flushable” wipes
Paper towels
Feminine products
Kids’ toys
Hygiene products

Even products labeled “flushable” can still create serious plumbing issues.

Sewer Line Backups

If multiple drains in the home are acting strangely, the issue may not be the toilet itself.

Signs of a sewer line problem include:

Toilets bubbling or gurgling
Water backing up into tubs or showers
Multiple clogged drains
Sewage smells
Slow draining throughout the home

This type of issue often requires professional plumbing service quickly.

Septic System Issues

For homes on septic systems around Liberty Hill and surrounding areas, an overflowing toilet may indicate:

A full septic tank
Drain field issues
Septic line blockage

Ignoring these symptoms can lead to major repairs.

Why Your Toilet Won’t Stop Running

A running toilet may not seem like an emergency at first…

But it can waste a surprising amount of water.

In some cases, a constantly running toilet can waste hundreds of gallons per day and significantly increase water bills.

Common Causes of a Running Toilet

Faulty Flapper

The rubber flapper inside the tank helps seal water between flushes.

Over time, it can:

Warp
Crack
Wear out
Stop sealing properly

This is one of the most common causes of continuous running water.

Float Problems

The float controls the water level inside the tank.

If it’s set too high or becomes damaged, water may continuously run into the overflow tube.

Fill Valve Issues

The fill valve controls how the tank refills after flushing.

A malfunctioning fill valve may:

Continuously run
Make noise
Fail to shut off completely

Chain Problems

If the chain connected to the flapper is too tight or tangled, the flapper may not close properly.

This can cause nonstop running.

Signs You Should Call a Plumber

Some minor toilet issues can be fixed quickly.

But certain symptoms may indicate a larger plumbing problem.

You should contact a plumber if:

The toilet repeatedly overflows
Multiple drains are clogged
Water backs up into other fixtures
The toilet leaks around the base
DIY plunging doesn’t work
The toilet constantly runs despite adjustments
You notice sewage odors
Water damage is occurring

Can a Running Toilet Increase Water Bills?

Absolutely.

A running toilet is one of the most common hidden causes of unexpectedly high water bills.

Many homeowners don’t realize the toilet is running because the sound becomes background noise over time.

Even a small constant leak can waste a large amount of water over weeks or months.

Why You Shouldn’t Ignore Toilet Problems

Minor toilet issues can quickly turn into major plumbing repairs.

Ignoring the problem can lead to:

Water damage
Mold growth
Flooring damage
Sewer backups
Higher utility bills
Structural issues

Addressing the issue early is usually far less expensive.

Toilet Problems in Older Austin-Area Homes

Many older homes in Austin and surrounding communities have aging plumbing systems.

Older plumbing may experience:

Corroded pipes
Frequent clogs
Worn toilet components
Drain line buildup
Sewer line deterioration

Recurring toilet problems in older homes may indicate it’s time for a deeper plumbing inspection.

Emergency Plumbing Help in Liberty Hill & Austin

Toilet overflows rarely happen at convenient times.

That’s why homeowners often need fast plumbing help when:

Guests are visiting
One bathroom serves the household
Water damage is spreading
The toilet becomes unusable

At OnCall Plumbing, emergency plumbing services help homeowners quickly

address urgent toilet and drain issues before they become bigger problems.

How To Help Prevent Future Toilet Problems

Some simple habits can reduce the risk of future overflows and running toilets.

Avoid Flushing:

Wipes
Paper towels
Cotton swabs
Feminine products
Grease
Excessive toilet paper

Watch for Warning Signs:

Slow flushing
Bubbling sounds
Frequent clogs
Water level changes
Constant running sounds

Schedule Plumbing Inspections

Routine plumbing inspections can identify hidden issues before emergencies happen.