7 Household Items That Should Never Be Flushed Down the Toilet

Posted by Blocked Drains Plumbing Sydney on 23 Mar 2026

The toilet is a ubiquitous household fixture that we all use daily. We tend to think of the convenience of it as a given, but it’s essential to keep in mind that it’s no garbage can. There are certain items that shouldn’t to be flushed into the drain because they can cause obstruction inside the sewer or damage in sewer lines.

Key Takeaways

  • Do not flush certain things in the bathroom because they could block the drain, or cause harm to pipes in the sewer.
  • Seven household items that you should never flush down the drain are:
    • Baby wipes
    • Condoms
    • Cooking grease and oil
    • Products for female hygiene (tampons and sanitary pads)
    • Medications
    • Dental floss
    • Paper towels
  • Flushing any of these items can lead to blocked drains or damaged sewer pipes within your plumbing system. This can result in an unforetold cost to you.
  • Blocked Drains Plumbing Sydney offers unblocking blocked drains drainage clearing, CCTV drain inspection, and pipe relining services.

There are 7 household things that you shouldn’t flush down the drain.

1. Baby wipes

Baby wipes may seem convenient however, they do not disintegrate like toilet paper and can clog your plumbing system. You should dispose of them in the trash instead.

2. Condoms

Toilet paper that contains condoms could cause blockages in both your home’s plumbing and the wastewater treatment plant.

3. Food preparation grease and oil

Grease and oil should be put in a container and thrown away in the garbage, since they can harden and cause obstructions in your drains, or pipes.

4. Feminine hygiene products

Tampons and sanitary pads are frequently advertised by their name as "flushable, " but flushing them will only lead to problems later when they mix with other things to cause a terrible blockage.

5. Medications

Medicines should not be flushed in the toilet since they can be a source of contamination for water sources.

6. Dental floss

Dental floss is made to be sturdy so it won’t fall apart in water, leading 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 deteriorate quickly once they are wet. This means that they will not easily cause blockages.

The bottom line is that flushing any of these seven items will eventually 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 Question

Can flushing feminine hygiene products can cause harm to my pipes?

Yes. The products used to clean your female hygiene don’t break down in water and could block your sewer or pipes.

Are flushable wipes actually flushable?

No, many "flushable" wipes don’t disintegrate easily and could cause clogs to your pipes.

Can I wash baby wipes by flushing them down the toilet?

No. Baby wipes should not be flushed down the drain as they do not dissolve easily and could cause obstructions.

Are paper towels suitable to flush?

No. Paper towels are thicker than toilet paper, and they aren’t broken down so easily, resulting in possible clogs in your plumbing system.

What about medications? Can I flush them into the toilet?

No. Medical treatments can cause a contamination of our waterways. It’s essential to dispose of them in a safe manner by taking your medications to the designated drop-off location.

If you’re dealing with an unblocking drain, don’t hesitate to contact our professional plumbing solutions for assistance at Blocked Drains Plumbing Sydney . We provide unblocking blocked drains and drain clearing CCTV drain inspection, and pipe relining services to ensure that your home is not impacted by plumbing issues. Call us today to schedule an appointment.

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