Fixing a running toilet is simpler than you may anticipate. This article will demonstrate how to fix a running toilet and provide guidance on resolving the issue. Stay calm during plumbing tasks. The solutions must be complete, regardless of your lack of plumbing expertise. Save water and rectify the toilet!

If you want to fix your running toilet fast, the best option is to contact professional residential plumbers and let them fix your problem.

Why is My Toilet Running

Why is My Toilet Running?

If you notice water escaping from the toilet tank or detect a leak within the toilet system, likely, the toilet will persistently run.

Typically, this problem stems from a malfunctioning flapper, a faulty fill valve, or an incorrectly sized overflow pipe. However, fret not, as this article is here to guide you through the step-by-step solutions for each issue.

The good news is that these fixes are not only straightforward to implement but will also lead to immediate cost savings on your upcoming water bill. By addressing these problems, you’ll conserve water and prevent any further inconveniences caused by a continuously running toilet.

Learn about other plumbing problems.

Tools Required For Fixing a Running Toilet

Tools Required For Fixing a Running Toilet
  1. Adjustable wrench: This versatile tool will come in handy for loosening and tightening various nuts and bolts in the toilet.
  2. Screwdriver: A Phillips head and a flathead screwdriver will help you remove screws or fasteners holding certain toilet parts together.
  3. Pliers: A pair of pliers, such as slip-joint pliers or adjustable pliers, can help grip and turn different types of pipes or fittings.
  4. Toilet flapper: If the flapper is the culprit causing the toilet to run, you may need to replace it. Make sure to have a compatible replacement flapper on hand.
  5. Fill valve: If the fill valve is defective or not functioning correctly, you might need to replace it. Ensure you have a suitable replacement fill valve.
  6. Tank bolts and washers: These bolts and washers secure the toilet tank to the bowl. If they are damaged or corroded, you may need to replace them.
  7. Teflon tape: This tape creates watertight seals on threaded connections. It can be helpful if you need to reseal any threaded pipes or fittings.
  8. Plumber’s putty: If you are working with seals or gaskets, a plumber’s putty can help create a watertight seal.
  9. Bucket or towels: It’s always a good idea to have a bucket or towels nearby to catch any water that may spill during the repair process.
  10. Flashlight: A flashlight will assist you in illuminating dark areas of the toilet tank or identifying potential issues.
  11. Hacksaw: A hacksaw may be required to cut through pipes or remove stubborn bolts or fittings. It can help you make clean cuts and remove damaged or obstructing parts.
  12. Pipe wrench: A pipe wrench, also known as a plumber’s wrench, can be helpful when dealing with larger pipes or fittings that require a firmer grip. It allows you to loosen or tighten stubborn connections with ease.
how to repair a running toilet

Fix a Running Toilet By Following These Easy Steps

As told, fixing running toilets is very easy even if you don’t have experience. All you need to do is follow the steps below, and you will fix your running toilets today.

Step One: Test the Flapper

Press down on the flapper using a stick when you notice the sound of running water in the toilet, and pay attention for it to cease. If it stops, the flapper is not creating a proper seal. It is imperative to replace the toilet flapper promptly.

Examine the length of the fill tube and trim it if necessary, ensuring that it extends at least half an inch above the water level.

To replace the flapper, start by turning off the water supply valve beneath the toilet (or the main shut-off valve if the toilet’s valve leaks!).

Flush the toilet to remove most of the water, then detach the old flapper. Purchase a new flapper of the same kind and proceed with the installation per the instructions on the packaging.

Attach the flapper chain to your toilet’s flush lever arm, allowing for a slight slack when the flapper is closed.

Test the Flapper

Step Two: Check the Fill Valve Of Your Toilet for a Leak

After flushing the toilet:

  1. Inspect for any signs of a leak in the fill valve.
  2. While refilling the tank, raise the toilet float arm and observe if the water flow ceases. If it does, proceed to the next step.
  3. Adjust the placement of the toilet float arm so that it interrupts the filling of the tank when the water level is about 1/2 to one inch below the overflow pipe’s upper edge.
  4. If the fill valve continues to leak, follow the instructions illustrated in the next photo to replace it.
Check the Fill Valve

Step Three: Remove and Replace Old Fill Valve

First, shut off the water supply. Then, flush the toilet and use a sponge or cloth to remove any remaining water from the tank. Next, disconnect the water supply line.

Loosen the locknut of the fill valve and cautiously detach the old fill valve from the tank.

Remove and Replace Old Fill Valve

Step Four: Install the New Toilet Fill Valve

Place the new fill valve into the tank, following the instructions on the accompanying instruction sheet. Once inserted, tighten the locknut by turning it a half turn past hand tight.

If the fill valve is already adjusted to its highest position, but the overflow pipe is still positioned above the critical level mark on the fill valve, you will have to trim the length of the overflow pipe.

Use a hacksaw to trim the overflow pipe so it sits approximately one inch below the critical level mark on the fill valve.

Install Toilet Fill Valve

Step Five: Connect the Fill Tube

Connect one end of the new fill tube to the fill valve nipple and the other to the provided angle adapter. If needed, adjust the length of the tube to prevent any kinks. Securely fasten the angle adapter onto the overflow pipe.

Complete the installation by attaching the flapper chain to the flush lever as described. Turn on the water supply and perform a test flush to ensure everything functions correctly.