7 Household Items That Should Never Be Flushed Down the Toilet

Posted by Sydney Plumber Blocked Drains on 22 Mar 2026

The toilet is a ubiquitous household fixture that we all use daily. It’s easy to take the convenience of it as a given, but it’s crucial to remember that it’s not a trash can. There are certain things that should never be flushed down the toilet because they could cause blockage from the pipes or damage for sewer drains.

Key Takeaways

  • Do not flush certain things in the bathroom because they can cause blockages in the drain, or cause damages to the pipes.
  • Seven household items you shouldn’t flush down the toilet are:
    • Baby wipes
    • Condoms
    • Oil and cooking fat
    • Products for female hygiene (tampons and pads for sanitary use)
    • Medicines
    • Dental floss
    • Paper towels
  • Cleaning any of these items can result in blockages in drains or damaged pipelines within your home’s plumbing system. This can result in an unimaginable cost to you.
  • Sydney Plumber Blocked Drains offers unblocking blocked drains, drain clearing CCTV drain inspection and pipe relining.

These are the seven items in your home you should never flush down the drain.

1. Baby wipes

Baby wipes may seem convenient however, they do not break down like toilet paper and could clog pipes. Put them in the garbage instead.

2. Condoms

The flushing of condoms in the toilet could cause blockages in both the plumbing in your home and the wastewater treatment plant.

3. Cooking grease and oil

Grease and oil must be disposed of in a container before throwing it away in the trash, as they will harden and cause obstructions in your drains or pipes.

4. Produits for female hygiene

Tampons and sanitary pad are usually marketed in the form of "flushable, " but flushing them can cause troubles later on if they mix with other things to form a nasty blockage.

5. Medications

It is not recommended to flush medications into the toilet as they can be a source of contamination for water sources.

6. Dental floss

Dental floss is created to be sturdy and durable, meaning it won’t be able to break when wet, which can lead to possible blockages in your pipes.

7. Paper towels

In contrast to toilet paper, Paper towels have a thicker weave, which will make them less likely to break down quickly when wet, which means they won’t easily blockage.

The bottom line is that flushing any of these seven items will ultimately lead to blocked drains and damaged pipelines in your plumbing system which comes at an unforetold expense to you. Be aware of the things you send down the toilet.

Item Reason for not Flushing
Baby wipes Do not break down like toilet paper and can clog your plumbing system. Dispose of them in the trash instead.
Condoms Leads to blockages both at home’s plumbing and treatment plants.
Cooking grease and oil Will harden and cause blockages in your drains or pipes.
Feminine hygiene products Combining with other items creates a nasty clog despite being marketed as "flushable".
Medications Can contaminate our water sources.
Dental floss Designed to be strong, leading to potential blockages in pipes.
Paper towels Less likely to deteriorate quickly once wet, easily causing blockages unlike with toilet paper.

Frequently Asked Questions

Do feminine hygiene products that are flushed can cause harm to my pipes?

Yes. Feminine hygiene products do not disintegrate in water, and could cause blockages in your pipes or sewer system.

Can flushable wipes be truly flushable?

Many "flushable" wipes do not actually break down easily and may cause clogs in your pipes.

Do I have to use baby wipes to flush them down the toilet?

No. Baby wipes should never be flushed into the toilet since they are not able to dissolve well and can cause blockages.

Do paper towels need to be used to flush?

No. Paper towels are thicker than toilet paper, and they aren’t broken down as quickly, causing potential clogs in your plumbing system.

What about medications? Should I flush them in the toilet?

No. The toxins in medicines can affect our waterways. Therefore, it’s crucial to dispose of them in a safe manner by taking these to designated place for drop-off.

If you’re dealing with blockage of your drain do not delay in calling our professional plumbing services by calling Sydney Plumber Blocked Drains . We offer services to clear blocked drains as well as drain clearing CCTV drain inspection as well as pipe relining services to ensure your home is not impacted by issues with drainage. Contact us today to set up an appointment.

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