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Performance Plumbing Blog

The Three Most Common Causes of a Slow-Flushing Toilet


If you are experiencing a slow-flushing toilet, then that is likely an indication that there is a bigger problem with your plumbing system.

Ignoring this issue will most likely lead to a bigger problem- like your toilet not working at all. The following are the three most common causes of a slow-flushing toilet.

It is recommended that you call a professional plumber to help you fix these issues and ensure that your plumbing system is in tip-top shape.

Not Enough Water in the Toilet Tank:

One of the causes of a slow-flushing toilet is that the water levels are too low in the toilet’s tank. Less water in the toilet tank may save you a little money but it is not worth the hassle of having a toilet that is not working properly. By lifting the lid off the back of your toilet, you can see if the water levels are too low.

Many tanks have an indicator of where the water levels should be. You can use the fill valve or the ballcock to adjust the water levels in your tank. Try flushing the toilet a few times after adjusting to ensure that it is no longer sluggish when flushed.

Blockage in the System:

A blockage in the line from your toilet is another common cause of a slow-flushing toilet. You may be surprised what could be blocking those lines.

Its possible that an item flushed by the previous owners could even be the culprit! The first thing to try would be a plunger to dislodge whatever is causing that blockage. If a plunger is unable to fix the issue, then you could try using a plumber auger or snake to go down the pipes.

Sediment Built-Up in the Water Line:

Finally, the third most common cause of a slow-flushing toilet is that there is a build-up of sediment in the water line. If you have already ruled out the first two issues, then it is likely that there is a build-up of sediment in your water lines.

If the sediment is built-up enough, then the water will not be able to flow out of them as efficiently as it should. You may need to clean those lines or call a professional plumber to replace them for you.

Your St. Louis, MO toilet issues can be a nuisance. Call Performance Plumbing at (636) 332-8220 today, and get your toilet working!

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