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What Should I Do if My Toilet Won’t Stop Running?

We’ve all been there. You flush the toilet, wash your hands, and wait for that familiar sound of silence. But instead, the water just keeps running… and running… and running! A continuously running toilet isn’t just annoying—it can waste gallons of water and lead to higher water bills. But before you grab a wrench or panic, let’s dive into why this happens and what you can do to fix it. Spoiler: You don’t need to be a professional plumber to handle this common issue (although we’re here if you need us!).

Why is My Toilet Running Non-Stop? Common Causes Explained

Before you can fix the problem, it helps to understand why it’s happening in the first place. Your toilet works through a complex system of valves, levers, and floats. When one of these parts malfunctions, the water keeps running. Here are the most common reasons for this frustrating issue:


1. Faulty Flapper

The flapper is the rubber stopper that lifts up when you flush, allowing water to flow from the tank to the bowl. When the flapper doesn't seal properly, water continues to leak into the bowl, causing the toilet to run.

  • How to check: Lift the toilet tank lid and inspect the flapper. If it's worn, cracked, or doesn't fit snugly, it’s time to replace it.
  • Fix: Replacing a flapper is simple! You can find them at any hardware store. Just remove the old one and clip on the new flapper.


2. Float Position is Off

The float in your toilet tank determines how much water fills the tank after each flush. If the float is too high, the water overflows into the overflow tube and causes the toilet to keep running.

  • How to check: Take a look at the water level in the tank. It should be about an inch below the top of the overflow tube.
  • Fix: Adjust the float by either bending the arm or adjusting the screw on top of the fill valve. Make sure the float allows the water to fill to the right level without overflowing.


3. Faulty Fill Valve

The fill valve controls the flow of water into the toilet tank. If it’s damaged or malfunctioning, it can cause the toilet to run continuously.

  • How to check: If adjusting the float doesn’t help, you might have a faulty fill valve.
  • Fix: Replacing the fill valve is a bit more complex but still manageable with basic tools. Be sure to turn off the water supply before replacing the valve.

Simple Fixes You Can Do Right Now to Stop Your Toilet from Running

So, now you know why your toilet might be acting up, but how do you fix it? Here’s a quick guide to get your toilet back to normal. Most of these fixes are DIY-friendly and won’t require an emergency call to a plumber.


1. Replace the Flapper

As mentioned, a faulty flapper is one of the most common reasons for a running toilet. Here’s how to replace it:

  • Turn off the water supply to the toilet.
  • Flush the toilet to drain most of the water from the tank.
  • Remove the old flapper by unhooking it from the flush lever.
  • Attach the new flapper to the flush lever, making sure it seals properly.
  • Turn the water back on and test the flush.


2. Adjust the Float

If the float is set too high, your toilet will keep running. Here’s how to adjust it:

  • Take the lid off the tank and locate the float.
  • Depending on your toilet model, you can either bend the float arm slightly down or adjust the screw on the top of the fill valve.
  • Flush the toilet to test the water level and make sure it stops before reaching the overflow tube.


3. Check the Fill Valve

Sometimes, the issue might lie with a faulty fill valve. If adjusting the float doesn’t stop the running, consider replacing the fill valve:

  • Turn off the water supply and flush the toilet to empty the tank.
  • Disconnect the water supply line.
  • Unscrew the fill valve from the bottom of the tank and replace it with a new one.
  • Reconnect the water supply line and turn the water back on.


4. Clean the Toilet Valve Seat

Over time, mineral deposits or debris can build up on the valve seat, preventing the flapper from sealing properly. Use a sponge or an old toothbrush to gently scrub the area.



By tackling one or more of these common problems, you’ll likely stop your toilet from running and get back to peace and quiet (and save water!).

Why Fixing a Running Toilet is Important: It’s More Than Just an Annoyance

Okay, so your toilet is running. It’s annoying, sure, but it’s no big deal, right? Actually, it can become a big deal! Here's why you shouldn’t ignore this problem:


1. Water Waste

A running toilet can waste up to 200 gallons of water per day. That’s a lot of water (and money) going down the drain—literally!


2. Increased Water Bills

If you’ve noticed your water bill creeping up recently, your toilet could be the culprit. Fixing a running toilet can save you from sky-high utility bills.


3. Potential Water Damage

Although rare, in extreme cases, a running toilet can cause water damage, especially if the overflow tube fails and water spills onto your floor. This can lead to costly repairs.


4. Environmental Impact

In an era where conserving water is crucial, a running toilet is a wasteful habit. Fixing the issue helps you be more eco-friendly by saving water.

When to Call a Professional Plumber for a Running Toilet

While many running toilet issues can be fixed with DIY methods, sometimes the problem is more serious. If you’ve tried the fixes above and your toilet is still running, it might be time to call in the pros. Here’s when you should reach out for help:


1. Persistent Problems

If your toilet keeps running despite replacing the flapper, adjusting the float, or fixing the fill valve, you may have a more complex issue at hand.


2. Old Plumbing

If you have an older home, your toilet or plumbing system might have outdated parts that require professional repair or replacement.


3. Leaks

If you notice water leaking around the base of the toilet or in other areas of your bathroom, it’s a sign of a larger problem that should be addressed by a plumber.

Call the Experts at K&C Construction for Professional Plumbing Services in Delta, CO

If you’re still hearing the constant drip or flow of water and don’t know what to do next, don’t worry—K&C Construction is here to help! Our team of experienced professionals specializes in plumbing repairs and can quickly diagnose and fix your running toilet. Whether it’s a simple flapper replacement or a more complex issue, we’ve got you covered.


But we don’t just stop at plumbing! At K&C Construction, we offer a variety of services, including roofing, gutters, and remodeling. So, if you need more than just toilet repairs, we’re your one-stop shop for home improvement needs in Delta, CO, and the surrounding areas. Give us a call today at (970) 210-0502 to schedule a consultation and get your plumbing back in shape.

FAQs

  • Can a running toilet cause high water bills?

    Yes, a continuously running toilet can waste a lot of water, leading to significantly higher water bills.

  • How do I know if the flapper is the problem?

    You can tell if the flapper is the issue by lifting the tank lid and checking if it seals properly after flushing. If it’s worn or not sitting correctly, water will keep flowing.

  • How much does it cost to fix a running toilet?

    If you’re DIY-ing it, you might only spend a few dollars on parts like a flapper or fill valve. If you call a plumber, the cost will vary based on the complexity of the repair.

  • Can I still use the toilet if it’s running?

    You can use a running toilet, but it’s best to fix the issue as soon as possible to avoid wasting water and increasing your bills.

  • How long does it take to fix a running toilet?

    Most running toilet fixes can be done in under 30 minutes, especially if it’s a simple flapper or float adjustment.

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