Have you ever been relaxing at home when a persistent trickling sound grabs your attention? You check the sink, look around the kitchen, and then realize it’s coming from the bathroom — a running toilet. At first, it might just seem like an annoying noise, but a constantly running toilet can quickly turn into a bigger problem. It wastes water, increases your utility bills, and could point to an underlying issue with your plumbing.
We’ll explore some common reasons why your toilet won’t stop running and how you can troubleshoot the problem.
What’s Making Your Toilet Run Constantly?
If your toilet keeps running, something in the tank isn’t working the way it should. Most of the time, the issue boils down to a few key components that handle the water flow. Here’s what might be causing the problem:
A Worn-Out Flapper Valve
The flapper valve is a rubber part that seals the tank’s water from flowing into the bowl when you’re not flushing. Over time, this part can crack, warp, or just lose its flexibility, which means water will continuously leak from the tank into the toilet bowl.
Fix: Replace the flapper with a new flapper, which you can find at any hardware store. Be sure to turn off the water supply line before starting. Once the new flapper is installed, flush the toilet to test the seal.
Too Much or Too Little Flapper Chain
That chain connecting the flush lever to the flapper might seem small, but if it’s not adjusted properly, it can prevent the flapper from sealing. If the chain is too short, it’ll tug on the flapper, and if it’s too long, it could get trapped underneath.
Fix: Adjust the chain so there’s just enough slack to let the flapper seal completely without getting in the way.
Issues With the Overflow Tube
The overflow tube acts as a safety feature, preventing the tank from overfilling. However, if it’s cracked or not adjusted properly, it could cause the toilet to run.
Fix: Inspect the overflow tube for damage and adjust its height if it’s not set correctly.
Trouble With the Fill Valve
The fill valve controls how much water enters the tank after a flush. If it’s faulty or improperly adjusted, your tank might overfill, causing water to spill into the overflow tube and the toilet to run continuously.
Fix: Replace the faulty fill valve with a new fill valve assembly if it’s not working right.
Float Ball or Float Cup Problems
Older toilets often use a float ball attached to a brass rod, while newer toilets rely on a float cup. Either way, if the float isn’t working properly, it won’t stop the water flow when the tank fills up.
Fix: Adjust the float level using the adjustment screw or, in the case of a float ball, gently bend the brass rod downward.
A Faulty Flush Valve Assembly
Look for damage, wear, or debris on the rubber flapper or flush valve assembly. If the flapper chain is too tight or has excess chain, it may prevent the flapper from closing properly.
Fix: Tighten or replace the flush valve assembly as needed.
Preventing a Continuously Running Toilet in the Future
Once you’ve fixed your toilet, a little maintenance can help prevent future problems. Here are a few tips:
- Check for Leaks Regularly: Lift the toilet tank lid occasionally to make sure everything is functioning as it should.
- Replace Worn Parts: Don’t wait for parts like the flapper valve or fill valve to fail completely before replacing them.
- Monitor Water Bills: If your water bill suddenly spikes, it could be a sign of a running toilet or another plumbing issue.
By keeping an eye on your toilet and its components, you can avoid costly repairs down the road.
When to Call the Professionals
Sometimes, a running toilet isn’t a quick fix. If you’ve tried everything and the toilet keeps running or the water constantly flowing, it’s a good idea to call a professional plumber. A professional can identify complex issues, such as a leaking tank-to-bowl gasket, an improperly installed fill valve assembly, or a worn-out flush lever.
PGA Inc. has a team of experienced plumbers in Wausau, WI, who are ready to help. We’ve seen it all — from minor repairs to major plumbing overhauls — and we’re here to get your toilet working properly again.
Have a Constantly Running Toilet? Call Our Wausau Plumbers!
A constantly running toilet can be caused by several common issues, such as a faulty flapper valve, problems with the fill valve, or an improperly adjusted float. Understanding why your toilet won’t stop running often comes down to inspecting these parts, checking for damage or wear, and making the necessary adjustments or replacements.
Dealing with a running toilet doesn’t have to be a drawn-out ordeal. If you’ve tried the basics and your toilet still won’t cooperate, let the team at PGA Inc. handle it for you.
Our Wausau plumbers have been helping homeowners fix plumbing problems of all sizes for years. From replacing a fill valve to diagnosing complex leaks, we’re here to make sure your toilet stops running, and your plumbing stays reliable. Call us today to schedule your appointment!