How to Fix a Running Toilet

A running toilet can be more than just an annoyance; it can waste a significant amount of water and increase your utility bills. Fortunately, fixing a running toilet is a relatively simple task that you can often handle yourself without needing to call a plumber. Here’s a step-by-step guide to help you address this common plumbing issue.

Step 1: Identify the Problem

The first step in fixing a running toilet is to identify the source of the problem. There are three main components that could be causing the issue:

1. The flapper
2. The fill valve
3. The float

Step 2: Check the Flapper

The flapper is the rubber seal at the bottom of the toilet tank that lifts to allow water to flow into the bowl during a flush. Over time, flappers can become warped, dirty, or misaligned.

• Turn off the water supply: Locate the shut-off valve behind the toilet and turn it clockwise to stop the water flow.
• Drain the tank: Flush the toilet to drain the water from the tank.
• Inspect the flapper: Remove the lid from the toilet tank and check the flapper for signs of wear or damage. If it looks worn out, it’s time to replace it.
• Replace the flapper: Unhook the old flapper from the flush chain and attach a new one. Ensure it seals properly over the flush valve.

Step 3: Adjust the Fill Valve

The fill valve controls the water level in the toilet tank. If it’s set too high, water can continuously flow into the overflow tube, causing the toilet to run.

• Check the water level: The water level should be about one inch below the top of the overflow tube.
• Adjust the fill valve: Depending on the type of fill valve, you may need to turn a screw or slide a clip along a rod to adjust the water level. Lower the float to reduce the water level if necessary.

Step 4: Inspect the Float

The float rises and falls with the water level in the tank, signalling the fill valve to open or close. If it’s set incorrectly, the fill valve may not shut off properly.

• Check the float: Ensure the float is not rubbing against the sides of the tank and moves freely.
• Adjust the float: If the float is a ball type, bend the arm gently to lower the water level. For a cup-type float, squeeze the clip on the side of the float and slide it down to adjust.

Step 5: Test the Toilet

Once you’ve made the necessary adjustments, it’s time to test the toilet to ensure the issue is resolved.

• Turn on the water supply: Open the shut-off valve by turning it anticlockwise.
• Fill the tank: Allow the tank to fill and check the water level.
• Flush the toilet: Ensure the flapper closes properly and the fill valve shuts off when the tank is full.
• Monitor for running: Listen for any sounds of running water. If the toilet continues to run, recheck the components and make further adjustments as needed.

Conclusion

Fixing a running toilet can be a straightforward DIY project that saves you time and money. By following these steps, you can identify and resolve the issue, helping to conserve water and reduce your utility bills. However, if you’ve tried these steps and the toilet is still running, it may be time to call a professional plumber for assistance.

For more plumbing tips and solutions, or if you need professional help, don’t hesitate to contact us. Our experienced team is ready to assist with all your plumbing needs.