How to Fix a Leaking Toilet
A leaking toilet can be fixed without a plumber. In this guide, we’ll show you how to fix a leaking toilet step by step, covering common causes like a faulty flush valve, worn wax ring, or leaking water supply line. But if you want professional help, visit The Plumbers Cardiff.
Tools and Materials Needed
- Adjustable wrench or monkey wrench
- Putty knife
- Shop vac (optional)
- Rubber washers
- New wax ring
- New fill valve
- New flush valve
- Basic tools like a screwdriver
- Dyed water for testing leaks
- Manufacturer’s instructions for replacement parts
Finding the Cause of the Leak
To fix a leaking toilet, start by finding the source of the problem. Here are the common areas to check:
Toilet Tank to Bowl Connection Check for water leaks between the toilet tank and toilet bowl. This could be a faulty flush valve or loose bolts.
Water Supply Line or Valve Check the water supply line, water supply valve, and connections for drips or leaks.
Toilet Base If water is pooling around the toilet base, the wax seal between the toilet and the sewer pipe is damaged.
Overflow Pipe and Fill Valve A constantly running toilet or water coming out of the overflow pipe means the fill valve or flush valve is faulty.
Step-by-Step Guide: How to Fix a Leaking Toilet
1. Turn Off the Water Supply
Find the water supply shutoff valve near the toilet and turn it clockwise to stop the water flow. Then, flush the toilet to empty the toilet tank and bowl as much as possible.
2. Fixing a Faulty Flush Valve
If the toilet is leaking from the toilet tank, the flush valve is the culprit. Here’s how to fix it:
- Remove the tank lid and check the flush valve and toilet flapper.
- If the flapper doesn’t lift evenly or doesn’t seal the opening, replace it. Follow the manufacturer’s instructions for installing a new flush valve.
- Check the overflow tube and adjust it if necessary to prevent overflows.
- Test for leaks by adding dyed water to the tank and seeing if coloured water appears in the toilet bowl.
3. Replacing a Faulty Fill Valve
A worn-out fill valve can cause a toilet leaking or a constantly running toilet. To replace it:
- Disconnect the water supply tube from the bottom of the tank.
- Remove the old fill valve by unscrewing the nuts underneath the tank.
- Install the new fill valve in the tank opening and make sure it fills the tank properly.
- Reconnect the supply tube and tighten the bolts underneath. Follow the manufacturer’s instructions.
4. Fixing Leaks at the Toilet Base
If water is leaking from the toilet base, the wax ring or closet flange needs to be replaced. Here’s how to fix it:
Remove the Old Wax Ring
- Turn off the water and disconnect the water supply line.
- Unscrew the two bolts holding the toilet to the floor and lift the toilet straight up.
- Use a putty knife to remove the old wax ring from the closet flange.
Install a New Wax Ring
- Place a new wax ring on the closet flange. Make sure it’s centred and seals properly.
- Lower the toilet back onto the ring and align it with the bolts. Press down gently to compress the wax.
Tighten the Bolts
- Secure the toilet with the bolts, but don’t overtighten as it may crack the porcelain.
- Reconnect the water supply line and turn on the water.
5. Water Supply Line Leaks
- Check the rigid pipe or supply tube for cracks or worn connections.
- Tighten loose connections with an adjustable wrench or replace the supply tube.
- Check the rubber washers for wear and replace if necessary.
How to Prevent Toilet Leaks
To prevent toilet leaks in the future:
- Inspect the toilet tank, bowl, and water supply line regularly for signs of wear or damage.
- Replace old parts like the fill valve, flush valve, and wax ring before they fail.
- Make sure the toilet is level and on a solid surface.
- Don’t flush anything that could damage the toilet tank or clog the sewer pipe.
Common Problems
Constantly Running Toilet Check the flapper and refill tube. Make sure the flapper lifts properly and seals the tank opening completely.
Leaks After Fixing Check the bolts around the tank and bowl. Loose nuts underneath could be causing small leaks.
Water on the Floor Check the wax seal is intact and the bolts underneath are secure. If necessary, repeat the wax ring remove and replace process.
When to Call a Professional Plumber
If you’ve followed these steps and your toilet is still leaking, call a plumber. The Plumbers Cardiff can sort out complex problems and make sure there are no more leaks.
Conclusion
Fixing a leaking toilet may seem daunting, but with the right tools and this guide, you can sort out many common problems. By fixing issues quickly and maintaining your toilet, you can prevent any toilet leak and have a fully functioning bathroom.
