How to Fix a Toilet That Keeps Running

A continuously running toilet is more than just a nuisance—it can lead to significant water waste and increased utility bills. Fortunately, addressing this common plumbing issue is often straightforward and can be managed with some basic tools and a bit of know-how.

In this guide, we'll walk you through the steps to diagnose and fix a running toilet. If you prefer professional assistance, Evergreen Plumbing & Mechanical LLC in Salem, Oregon is here to help.

Common Causes of a Running Toilet

Understanding the root cause of the problem is the first step toward an effective solution. The most frequent culprits include:

Faulty Flapper: The flapper is a rubber component that controls the release of water from the tank into the bowl. Over time, it can become warped, worn, or accumulate mineral deposits, preventing a proper seal.
Improper Chain Length: The chain connecting the flush handle to the flapper can be too short, preventing the flapper from sealing, or too long, causing it to get trapped under the flapper.
High Water Level: If the water level in the tank is set too high, it can spill into the overflow tube, causing the toilet to run continuously.
Malfunctioning Fill Valve: The fill valve controls the water level in the tank. If it's not functioning correctly, it may not shut off the water supply, leading to constant running.

Step-by-Step Solutions

Before starting any repairs, turn off the water supply to the toilet by closing the shut-off valve located behind the toilet. Then, flush the toilet to empty the tank.

1. Inspect and Replace the Flapper

Check the Flapper: Remove the tank lid and examine the flapper for signs of wear, warping, or mineral buildup.
Clean or Replace: If the flapper is dirty, clean it with warm water and vinegar. If it's damaged, replace it with a new one compatible with your toilet model.

2. Adjust the Chain Length

Assess the Chain: Ensure the chain has about 1/2 inch of slack. Too much slack can cause it to get caught under the flapper; too little can prevent the flapper from sealing.
Modify as Needed: Adjust the chain length by repositioning the hook on the chain to achieve the appropriate slack.

3. Lower the Water Level in the Tank

Identify the Float Type: Toilets typically have a float ball or a float cup.
Adjust the Float:
- Float Ball: Bend the arm attached to the float ball downward to lower the water level.
- Float Cup: Use the adjustment screw on top of the fill valve to lower the float cup.
Set the Correct Water Level: The water level should be about an inch below the top of the overflow tube.

4. Replace the Fill Valve

Diagnose the Valve: If adjusting the float doesn't resolve the issue, the fill valve may be faulty.
Replace the Fill Valve:
- Turn off the water supply and drain the tank.
- Disconnect the water supply line and remove the old fill valve.
- Install a new fill valve according to the manufacturer's instructions.
- Reconnect the water supply, turn it on, and test the toilet.

When to Call a Professional for Toilet Repairs

If you've attempted these fixes and your toilet continues to run, it may be time to consult a professional plumber. At Evergreen Plumbing & Mechanical LLC, we offer comprehensive toilet plumbing services in Salem, Oregon, and the surrounding areas. Our licensed and insured technicians are equipped to handle any plumbing issue, ensuring your home's plumbing system operates efficiently.

Preventive Toilet Maintenance Tips

Regular Inspections: Periodically check the condition of your toilet's internal components to catch and address wear and tear early.
Prompt Repairs: Address minor issues promptly to prevent them from escalating into more significant problems.
Professional Maintenance: Schedule regular plumbing inspections to ensure all components are in good working order.

By following these steps, you can resolve most running toilet issues, conserving water and preventing higher utility bills.

Remember, when in doubt, don't hesitate to reach out to the professionals at Evergreen Plumbing & Mechanical LLC for expert assistance.