Diy Plumbing 101: How To Change The Fill Valve And Fix Your Running Toilet!
What To Know
- A malfunctioning fill valve can lead to a variety of toilet problems, including overflowing, running constantly, or failing to fill the tank.
- Changing a fill valve is a relatively simple task that can be completed in under an hour with the right tools and materials.
- Use a damp towel or rag to clean the rim of the tank where the fill valve was installed.
A malfunctioning fill valve can lead to a variety of toilet problems, including overflowing, running constantly, or failing to fill the tank. Changing a fill valve is a relatively simple task that can be completed in under an hour with the right tools and materials.
Tools and Materials
- Adjustable wrench
- Screwdriver
- Pliers
- New fill valve
- Towels or rags
Step-by-Step Instructions
1. Shut Off Water Supply
Locate the water supply valve behind the toilet and turn it clockwise to shut off the water supply.
2. Flush Toilet
Flush the toilet to empty the tank. Hold the handle down until all the water is drained.
3. Remove Old Fill Valve
- For a nut-style fill valve: Use an adjustable wrench to loosen the nut that secures the fill valve to the tank.
- For a slip-on fill valve: Use pliers to gently pull off the old fill valve.
4. Clean Tank Rim
Use a damp towel or rag to clean the rim of the tank where the fill valve was installed. This will ensure a proper seal for the new fill valve.
5. Install New Fill Valve
- For a nut-style fill valve: Align the new fill valve with the tank opening and insert the threaded end through the hole. Tighten the nut by hand until it is snug, then use an adjustable wrench to tighten it further.
- For a slip-on fill valve: Align the new fill valve with the tank opening and push it on firmly. Use pliers to secure it in place.
6. Connect Water Supply
- For a nut-style fill valve: Attach the water supply hose to the fill valve inlet. Use an adjustable wrench to tighten the nut on the hose.
- For a slip-on fill valve: Slide the water supply hose over the fill valve inlet and use pliers to clamp it in place.
7. Adjust Fill Valve
- Set the water level: Adjust the fill valve height by turning the adjustment screw on the top of the valve. The water level should be about 1 inch below the top of the overflow tube.
- Adjust the fill rate: Adjust the fill rate by turning the adjustment screw on the side of the valve. The fill rate should be fast enough to fill the tank quickly but not so fast that it overflows.
8. Test the Fill Valve
Turn on the water supply and flush the toilet. Check for leaks around the fill valve and make sure the water level is correct. If necessary, make further adjustments to the fill valve.
Troubleshooting
- Toilet still overflows: Check the water level adjustment screw and make sure it is set correctly. The water level should be about 1 inch below the top of the overflow tube.
- Toilet runs constantly: Check the fill valve diaphragm for wear or damage. Replace the diaphragm if it is damaged.
- Toilet not filling: Check the water supply hose for kinks or blockages. Check the fill valve inlet filter for debris.
Key Points
Changing a fill valve is a simple and cost-effective way to resolve common toilet problems. By following these steps, you can restore your toilet to proper functionality and avoid costly repairs.
Top Questions Asked
1. How often should I change the fill valve?
Fill valves typically last for 5-10 years. If you experience any problems with your toilet, such as overflowing, running constantly, or failing to fill, it may be time to change the fill valve.
2. Can I use any fill valve for my toilet?
No. There are different types of fill valves, so it is important to choose the correct one for your toilet. Check the manufacturer’s instructions for your toilet to determine the correct fill valve.
3. How do I know if the fill valve is the problem?
If your toilet is overflowing, running constantly, or failing to fill, the fill valve is likely the problem. You can also check the fill valve for leaks or damage.
