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Charles, Engineering Contractor
Category: Plumbing
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Experience:  20+ years in most phases of construction
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The toilet keeps flushing by itself. There is no leak from

Resolved Question:

The toilet keeps flushing by itself. There is no leak from the bottom of the tank so that's not the problem.

Should I get a tank kit and replace it?
Submitted: 7 years ago.
Category: Plumbing
Expert:  Charles replied 7 years ago.

Hello, and thanks for your question!!


The 2 most common reasons that a toilet will flush on its own are the following.

1- The flapper or fill valve are letting water into the bowl. When the water level in the bowl reaches a certain level, it will cause the toilet to flush.


2- If the plumbing venting in the house has restrictions (blocked or not allowing proper air flow) when another toilet, washing machine, dish washer are used they can cause a suction action in the drain system that can cause the toilet to flush also.


I would try installing a complete flush kit first before anything else.


I hope this answers your question, If so please click the green accept button. If not Im still here to assist you.


Thanks again,


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