A toilet that won’t stop running is not only annoying but also wastes a lot of water, which can raise your utility bills. Luckily, fixing it is usually simple and can be done in a couple of hours. Here’s how to figure out the problem and fix it.

Why Your Toilet Keeps Running

1. Overflow Tube Problem

   • If water is constantly flowing into the overflow tube, the water level might be too high, or the tube might be too short. Adjust the water level or replace the overflow tube if needed.

2. Fill Valve Issue

   • If the water level looks right but the toilet still runs, there might be an issue with the fill valve.

3. Flush Valve Problem

   • Check the flapper and the chain. If the flapper is worn out, not closing properly, or the chain is tangled, it can cause the toilet to run.

Tools You’ll Need

• New toilet parts (flapper, flush valve, fill valve, etc.)

• Screwdriver

• Bucket

• Towel or sponge

• Channel locks

Steps to Fix a Running Toilet

1. Check the Water Level

   • Open the tank and flush the toilet. Make sure the water fills to about an inch below the overflow tube. Adjust the fill valve or float if necessary.

2. Inspect the Flush Valve

   • Make sure the flapper closes properly. Look for any signs of wear or damage. Adjust or untangle the chain if it’s preventing the flapper from closing.

3. Test the Toilet

   • Flush the toilet and see if it stops running. If it doesn’t, you might need to replace the flush or fill valve.

How to Replace the Flush Valve

1. Turn Off the Water Supply

   • Shut off the water and drain the tank. Use a towel or sponge to soak up any remaining water.

2. Remove the Old Valve

   • Disconnect the water supply and remove the tank. Take out the old flush valve.

3. Install the New Valve

   • Put in the new flush valve and reassemble the toilet. Turn the water back on and test.

How to Replace the Fill Valve

1. Turn Off the Water Supply

   • Shut off the water and drain the tank.

2. Remove the Old Valve

   • Disconnect the supply line and remove the fill valve assembly.

3. Install the New Valve

   • Put in the new fill valve, adjust the height and float, reattach the water supply, and test the toilet.

When to Call a Plumber

If you’re unsure about any part of the process or if the problem continues, it’s best to call a professional plumber. They can fix the issue quickly and correctly, saving you time and hassle. Tim Beil Plumbing has been one of Allentown’s best plumbers since 1967, and can help you with any plumbing problem.