5 Tips To Fixing A Running Toilet

A running toilet is a recurrent problem in many homes. Failure to repair a running toilet can waste many liters of water resulting in very high water bills. It is also unhygienic as toilet germs are consistently released into the air. A running toilet will also create a perfect breeding ground for mold.

Luckily, this problem can be sorted using a few simple tips that will not only help you reduce water wastage but also keep your toilet pristine and clean.

Here are five suggestions for how to fix a running toilet.

  1. Locate The Problem.

A running toilet can stem from a number of issues. This includes mineral buildup, waterlogged floats, fluctuating water levels and faulty flappers.

To identify the problem, remove the cistern lid and place it somewhere safe. Flush the toilet while looking inside the tank and observe where the water level stops. Also, check the various parts for any noticeable problem.

  1. Minerals Buildup

Mineral build ups inside the toilet tank are not only unpleasant to look at, but they can also cause problems in the toilet mechanism. Mineral deposits can form a hard residue which can suppress the flapper, preventing it from forming a proper seal. This will make your toilet cycle on and off.

To remove mineral deposits and rust from your toilet, you can use a water and vinegar solution. Clean the inside of your tank thoroughly. Thereafter, apply petroleum jelly or silicone grease to act as a sealant. This will essentially allow the flapper to start working again.

If there is too much buildup inside your toilet tank, consider hiring a professional plumber to clean it for you. This is because they might need to take out some of the parts to clean them.

  1. Check The Water Level

Always check if the water in the tank is at the water line. When the water level is too high, it will always drain into the overflow tube and the fill valve won’t shut off. This will keep your toilet running. If you have a defective fill valve, you can shut off the water supply and get a replacement valve.

If the water level is too low, check if the water valve is on. If it’s not, adjust it to allow the water to fill up the tank.

  1. Waterlogged Floats

If there is water trapped inside your float, it will most probably cause a running toilet. This is because the float will sit lower in the water, leaving the float valve open. Therefore, if you notice a hole in your float, consider getting a replacement.

  1. Address Your Flapper Problems

A toilet flapper works by creating a seal for the flush valve in the tank. When you push the toilet handle, the flapper goes up allowing your toilet to flush then goes down again creating the seal again.

Thus, the flapper is very important as it controls the amount of water released in every flush. If your flapper is broken or not functioning properly, you will always have a messy, running toilet.

A damaged flapper will definitely need replacing. Ensure that you get the correct flapper for your toilet. Read your toilet manual to find the correct toilet valves and the gallons per flush for your toilet.


I do hope that these five simple tips will help you fix your running toilet. If you need to Fix a Running Toilet With a Toilet Flapper, consider checking out our buyers guide for the best reviews on toilet flappers.

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