Why Does My Toilet Keep Blocking?

Toilet Problems

A blocked toilet is one of the most common household plumbing issues. If your toilet keeps blocking and you are at a loss as to why, it can be surprising to learn the cause. A blocked toilet is a problem that needs to be inspected and repaired. If your toilet keeps blocking, it’s time to call the team from Mainline Plumbing and Cheap Hot Water and Gas.

The Mainline Plumbing and Cheap Hot Water and Gas team can help find the cause of your blocked toilet. Common causes include:

  • Age
  • Foreign Objects
  • Sewerage Issues


If your toilet continues to block and you have ruled out all the other possible reasons why, it may be time to replace it with a more up to date model. Many older toilets are first generation low flow toilets and don’t have enough pressure when flushed to effectively clear their drain and trap. As a result, despite doing everything right they still regularly become blocked.

Foreign Objects

Toilets are designed to only flush toilet paper. Why? Toilet paper is made to dissolve quickly in water. Any other object, even if it says it’s flushable, should not be flushed down toilets. Recurring blocked toilets in a home can simply be as foreign objects unknowingly continue to be flushed. Items such as tissues, paper towel, cotton tips, flushable wipes, food scraps, cooking oils and chemicals should not be flushed down a toilet. It is important to ensure all your family understands this too. Children are fascinated with flushing items down the toilet. If you have an inquisitive child in your home, keeping the toilet lid shut and toilet door shut is a good idea.

Sewerage Issues


If several toilets in your home or workplace continue to block or you have blocked drains plus a blocked toilet, a sewerage issue may be the culprit. Main sewer lines can become blocked due to a build up of waste, foreign objects or even tree roots in the main drain and sewer lines.

Mainline Plumbing and Cheap Hot Water are your local toilet specialists

With over 35 years’ experience, Mainline Plumbing and Cheap Hot Water and Gas are your trusted and reliable professionals, servicing the Bunbury, Busselton, Dunsborough and surrounding areas.

Mainline have the correct tools and equipment to clear and repair blocked toilets. If you want to get to resolve your blocked toilet issues, they are ‘the trusted name in the plumbing industry’.

Contact the team today in Bunbury on Bunbury on 9791 1608 or Busselton/Dunsborough on 9759 1317.