Transform Your Bathroom: How To Change Your Toilet Supply Line

Changing a toilet supply line is a relatively simple plumbing task that can be completed in a short amount of time. However, if you’re not familiar with plumbing, it’s important to follow the steps carefully to avoid any leaks or damage.

Tools and Materials You’ll Need:

• New toilet supply line
• Adjustable wrench
• Plumber’s tape
• Bucket or bowl
• Rags

Step-by-Step Instructions:

1. Turn Off the Water Supply:

Locate the water shut-off valve behind the toilet and turn it clockwise to close it. If there is no shut-off valve, you will need to turn off the main water supply to your house.

2. Flush the Toilet:

Flush the toilet to empty the tank and bowl. This will help relieve any pressure in the supply line.

3. Disconnect the Old Supply Line:

Using an adjustable wrench, loosen the nut that connects the supply line to the fill valve at the bottom of the tank. Then, loosen the nut that connects the supply line to the toilet’s water inlet valve.

4. Remove the Old Supply Line:

Once the nuts are loosened, remove the old supply line. Be careful not to spill any water that may be remaining in the line.

5. Install the New Supply Line:

Apply plumber’s tape to the threads of the new supply line. This will help create a watertight seal.

6. Connect the New Supply Line:

Screw the new supply line into the fill valve and then into the toilet’s water inlet valve. Tighten the nuts using the adjustable wrench, but do not overtighten.

7. Turn On the Water Supply:

Slowly turn on the water shut-off valve behind the toilet. Check for any leaks around the connections. If there are any leaks, tighten the nuts further.

Troubleshooting:

1. My toilet is still running after I’ve changed the supply line:

• Check the fill valve to make sure it’s not faulty.
• Adjust the water level in the tank.
• Replace the flapper valve.

2. There is a leak around the connection to the fill valve:

• Tighten the nut on the supply line.
• Replace the washer on the fill valve.

3. There is a leak around the connection to the toilet’s water inlet valve:

• Tighten the nut on the supply line.
• Replace the washer on the toilet’s water inlet valve.

Recommendations:

Changing a toilet supply line is a simple task that can be completed in a short amount of time. By following the steps outlined in this guide, you can save yourself the cost of hiring a plumber.

Information You Need to Know

Q: How often should I change my toilet supply line?
A: It is generally recommended to change your toilet supply line every 5-7 years. However, if you notice any leaks or damage, you should replace it immediately.

Q: Can I use a flexible or braided supply line?
A: Yes, flexible or braided supply lines are a great option for toilets because they are less likely to kink or break.

Q: What size supply line do I need for my toilet?
A: Most toilets use a 7/8-inch supply line. However, it’s always best to check the manufacturer’s specifications for your particular toilet model.

Q: Can I change a toilet supply line without turning off the water?
A: It is not recommended to change a toilet supply line without turning off the water. This could lead to leaks or damage to your toilet.

Q: What should I do if I have a leak after changing the supply line?
A: If you have a leak after changing the supply line, tighten the nuts on the supply line. If this does not stop the leak, you may need to replace the washer on the fill valve or the toilet’s water inlet valve.