Many plumbing problems start with good intentions and bad advice.

From pouring boiling water down drains to trusting so-called flushable wipes, homeowners are constantly exposed to plumbing myths that can lead to blocked drains, burst pipes, leaks and costly repairs.

The problem is that some of these myths have been repeated for years, making them sound believable. Unfortunately, believing the wrong plumbing advice can end up costing hundreds or even thousands of pounds in repairs.

In this guide, we’ll separate plumbing fact from fiction and debunk some of the most common plumbing myths still circulating today.

Myth #1: Flushable Wipes Are Safe To Flush

The Myth

If the packaging says “flushable”, it must be safe for your pipes.

The Reality

Despite their name, flushable wipes do not break down like toilet paper. They remain intact for much longer and can easily become trapped inside pipework.

Over time, wipes combine with grease, hair and other debris to create stubborn blockages that can affect entire drainage systems.

What You Should Do Instead

Only flush:

• Human waste
• Toilet paper

Everything else belongs in the bin.

Myth #2: A Dripping Tap Is Nothing To Worry About

The Myth

It’s only a few drops of water.

The Reality

A dripping tap wastes water every day and often signals a worn washer, faulty valve or excessive water pressure.

Small leaks can become larger leaks if ignored and may even indicate a bigger plumbing issue developing behind the scenes.

What You Should Do Instead

Repair dripping taps promptly before they become more expensive problems.

Myth #3: Pouring Boiling Water Down The Drain Removes Grease

The Myth

Hot water melts grease so it solves the problem.

The Reality

Boiling water may temporarily liquefy grease, but once it cools further down the pipe, the grease solidifies again.

This often causes blockages deeper within the drainage system where they’re harder to remove.

What You Should Do Instead

Allow grease to cool in a container and dispose of it in the bin.

Myth #4: Chemical Drain Cleaners Are The Best Solution

The Myth

If the blockage disappears, the cleaner worked.

The Reality

Many chemical drain cleaners contain harsh ingredients that can damage pipework over time.

Repeated use may weaken seals, joints and older pipes while only partially removing the blockage.

What You Should Do Instead

Use mechanical drain cleaning methods or contact a professional for persistent blockages.

Myth #5: Slow Drains Will Eventually Clear Themselves

The Myth

The water still goes down eventually.

The Reality

A slow drain is usually an early warning sign of a blockage forming.

Ignoring it often allows the problem to worsen until the drain becomes completely blocked.

What You Should Do Instead

Investigate slow drains early before they become full drainage emergencies.

Myth #6: All Plumbing Problems Are DIY Jobs

The Myth

A quick online video is all you need.

The Reality

While some simple repairs are suitable for homeowners, incorrect DIY plumbing can cause leaks, water damage and even invalidate insurance claims.

Many emergency callouts originate from failed DIY repairs.

What You Should Do Instead

Know your limits and call a qualified plumber for anything involving pipework, drainage systems or water pressure issues.

Myth #7: Pipes Only Burst During Winter

The Myth

Burst pipes are only caused by freezing weather.

The Reality

While frozen pipes are common in winter, pipes can burst year-round due to:

• Corrosion
• High water pressure
• Poor installation
• Ground movement
• Age-related wear

Frozen pipes are just one possible cause.

Myth #8: A Plunger Can Fix Every Blockage

The Myth

If you plunge hard enough, it will clear.

The Reality

Plungers are effective for minor obstructions but cannot solve every blockage.

Deep-rooted drain issues often require specialist equipment such as drain rods, CCTV inspections or high-pressure water jetting.

Myth #9: Running Water Makes Everything Safe To Put Down The Sink

The Myth

As long as the tap is running, waste won’t cause problems.

The Reality

Running water does not prevent grease, oils, fats or food waste from accumulating inside your pipes.

Many kitchen blockages start with this misconception.

Myth #10: Lemons Clean Your Drain

The Myth

Lemon peels sharpen and clean drains.

The Reality

Lemons may temporarily improve smells but they do not clean your drainage system.

In some cases, acidic substances can even contribute to wear on certain plumbing components.

Myth #11: Small Leaks Can Wait

The Myth

It’s only a tiny leak.

The Reality

Water damage often starts from small leaks that go unnoticed.

A minor leak can lead to:

• Damp
• Mould growth
• Rotting timber
• Structural damage
• Increased water bills

Small leaks rarely get better on their own.

Myth #12: New Homes Don’t Need Plumbing Maintenance

The Myth

Everything is new so nothing can go wrong.

The Reality

Even modern plumbing systems benefit from routine inspections.

Manufacturing defects, installation issues and hidden leaks can occur in both old and new properties.

Myth #13: Plumbing Maintenance Is A Waste Of Money

The Myth

If nothing is broken, there’s nothing to fix.

The Reality

Preventative maintenance often costs far less than emergency repairs.

Routine inspections can identify developing problems before they become expensive callouts.

Myth #14: All Plumbers Are The Same

The Myth

Anyone can fix pipes.

The Reality

Experience, qualifications and specialist equipment vary significantly between plumbing companies.

Choosing a reputable professional can often save money and prevent repeat repairs.

Myth #15: Plumbing Problems Always Mean Huge Bills

The Myth

Calling a plumber will cost a fortune.

The Reality

Many plumbing issues are relatively inexpensive when caught early.

Delaying repairs is often what turns a minor issue into a major expense.

The Truth About Looking After Your Plumbing

Most plumbing emergencies don’t happen overnight.

Blocked drains, leaking pipes and damaged fixtures often start as small issues that are ignored because of common misconceptions.

Understanding the facts can help you:

• Prevent expensive repairs
• Reduce water waste
• Protect your property
• Extend the life of your plumbing system
• Avoid emergency callouts

A little preventative maintenance today is usually far cheaper than a major plumbing repair tomorrow.

Frequently Asked Questions

What Is The Biggest Plumbing Myth?

The belief that flushable wipes are safe to flush remains one of the most damaging plumbing myths.

Can Boiling Water Damage Pipes?

Yes. Repeated exposure to boiling water can damage certain pipe materials and seals.

Do Chemical Drain Cleaners Damage Pipes?

Some can, particularly when used frequently or in older plumbing systems.

Is A Slow Drain Serious?

Usually yes. A slow drain often indicates a developing blockage.

How Often Should Plumbing Be Inspected?

Most homeowners benefit from a plumbing inspection every one to two years, particularly in older properties.

Are Plumbing Problems Usually Preventable?

Many common plumbing issues can be prevented through regular maintenance and early intervention.