Why Does My Toilet Keep Clogging?

A clogged toilet is a frustrating problem that can occur from time to time, but when it happens repeatedly, it can be a cause for concern. This time on the Economy Plumbing Service blog, we’re going to look at the most common causes for a clogged toilet and what you can do.

There are several reasons why a toilet might repeatedly clog, including:

Flushing Inappropriate Materials

One of the most common reasons for a toilet to clog repeatedly is flushing inappropriate materials down the toilet. Items such as sanitary products, baby wipes, paper towels, or other non-biodegradable materials can cause clogs that are difficult to clear.

Low-Flow Toilet

Low-flow toilets are designed to conserve water, but they can be prone to clogs because of their reduced water usage. If a low-flow toilet is not flushing properly, it can lead to frequent clogs.

Faulty Flusher 

The flushing mechanism inside the toilet tank can wear out over time and not provide enough water to clear waste effectively. This can lead to frequent clogs.

Hard Water

Hard water can cause mineral buildup in the toilet trap and pipes, leading to clogs. The minerals can also create a rough surface inside the pipes, which can catch waste and cause blockages.

Blocked Drain Vent 

The drain vent is a pipe that allows air to flow into the drain system, helping to move waste through the pipes. If the vent is blocked, it can cause water to drain slowly and lead to clogs.

Sewer Line Issues 

If the clogs are not limited to one toilet but occur throughout the house, it could be a sign of a more significant problem with the sewer line. Tree roots, debris, or other obstructions can cause the sewer line to become blocked, leading to frequent clogs.

Incorrect Installation

If the toilet was installed incorrectly, it could be the cause of repeated clogs. If the toilet is not properly sealed or the trap is not aligned correctly, it can lead to clogs.

Improper Use Of Toilet Bowl Cleaner 

Toilet bowl cleaners that contain harsh chemicals can cause damage to the porcelain and rubber components inside the toilet, leading to clogs. Overuse of these cleaners can also cause the buildup of residue, leading to blockages.

Age of the Toilet

Over time, the porcelain of the toilet can wear down, causing rough surfaces that can catch waste and lead to clogs. The rubber components inside the toilet can also deteriorate over time, leading to problems with flushing.


All that to say, a toilet that clogs repeatedly can be frustrating and can indicate a more significant plumbing problem. It is essential to identify the cause of the clogs to prevent further damage to the toilet or the plumbing system. If the problem persists, it is best to contact a plumber to assess the situation and make any necessary repairs.

You know who to call! If water runs to it or through it, we do it!