In Part 1 of this series, we explored ‘Why plumbing matters even if you’re renting in Singapore‘ — from understanding repair responsibilities to spotting early signs of trouble.

Now, let’s zoom in further.

Even if you don’t own your home or aren’t a plumbing pro, your daily habits play a huge role in keeping things running smoothly — or causing problems without you knowing it.

Here are 6 common plumbing mistakes Singaporeans make without realizing, and how to fix them before they lead to expensive repairs.

1. 🛢 Pouring Grease or Oil Down the Sink

Why it’s a problem:

Grease hardens inside your pipes and builds up over time — a top reason for kitchen blockages in Singapore homes.

What to do instead:

• Let grease cool, pour it into a disposable container, and throw it in the trash.
• Wipe oily pans with paper towels before rinsing.

2. 🚿 Ignoring Slow Drains

Why it’s a problem:

A slow drain often means a clog is forming. Ignoring it allows gunk to build up and increases pressure on your pipes.

What to do instead:

• Use a natural solution like baking soda + vinegar monthly.
• Still slow? Call a plumber before it becomes a full blockage.

3. 🔧 Over-Tightening Taps and Fixtures

Why it’s a problem:

It feels like you’re “sealing it shut,” but over-tightening wears down washers and threads, leading to leaks or cracked fittings.

What to do instead:

• Tighten until snug — not forceful. Gentle is better in the long run.

4. 🚽 Flushing the Wrong Things

Why it’s a problem:

Toilets are built for human waste and toilet paper only. Wet wipes (even “flushable” ones), cotton buds, sanitary items, and tissues don’t break down properly and clog your pipes.

What to do instead:

• Keep a bin beside every toilet.
• Educate household members and guests.

5. 🪠 DIY Fixes Gone Wrong

Why it’s a problem:

Not all leaks or clogs are created equal. Trying to “fix” things yourself with chemical drain cleaners or improper tools can cause long-term damage.

What to do instead:

• Basic drain cover cleaning? Go for it.
• Replacing a pipe or dealing with recurring leaks? Call a PUB-licensed plumber.

6. 📅 Skipping Routine Checks

Why it’s a problem:

Singapore’s humid climate accelerates pipe wear, especially in older HDB units. Skipping annual plumbing checks means small problems go unnoticed — until they’re big ones.

What to do instead:

• Schedule a yearly plumbing inspection.
• If your flat is over 10 years old, consider a pipe condition review.

💬 Final Thought:

Most plumbing disasters don’t happen overnight — they start with small, everyday habits that slowly wear down your system. By making smarter choices in how you treat your sinks, toilets, and pipes, you’re protecting your home (and your wallet) in the long run.

In the next post of our Plumbing Smarts 101: Singapore Edition, we’ll break down the warning signs that those “small issues” might actually be serious.

Because when it comes to plumbing, knowing when to take action can make all the difference

🔎 Bonus: Are You Sabotaging Your Pipes Without Knowing It?

Take our quick Plumbing Quiz to see if it’s time to call in a professional — or breathe easy knowing you’re doing everything right.