Why Does My Toilet Keep Running On and Off? Here’s How to Fix It

Is your toilet constantly running on and off, wasting water and driving up your bills? This common but annoying problem can disrupt your day and increase your utility costs. At Prestige Plumbing Werks, we understand how frustrating intermittent toilet running can be, and we’re here to help you diagnose and fix the issue quickly and effectively.

Why Does a Toilet Keep Running on and off?

A toilet that keeps running intermittently is typically caused by a few key issues related to the internal components of the toilet tank. Understanding these causes can help you decide if it’s a DIY fix or time to call in the professionals.

1. Faulty Flapper Valve

The flapper valve is a rubber flap at the bottom of the tank that seals water in after you flush. If the flapper is worn, warped, or misaligned, water will continuously leak into the bowl, causing the fill valve to trigger repeatedly as it refills the tank.

2. Problems with the Fill Valve

The fill valve controls the water flow into the toilet tank. If the valve is stuck or improperly adjusted, it can cause the water to run intermittently as it continuously tries to maintain the correct water level.

3. Incorrect Water Level

If the water level inside the tank is set too high, water will spill into the overflow tube. This causes the fill valve to cycle on and off trying to keep the water level stable, resulting in a running toilet.

4. Worn Out or Damaged Parts

Other worn or damaged components, such as the flush valve seat or the float ball (or float cup), can also cause intermittent running by disrupting the tank’s ability to seal and refill properly.

 

How to Fix a Toilet That Keeps Running On and Off

If your toilet is running intermittently, here are some simple troubleshooting steps you can try before reaching out to Prestige Plumbing Werks for professional help:

Step 1: Inspect and Replace the Flapper Valve

Turn off the water supply, flush the toilet to empty the tank, and inspect the flapper for signs of wear or damage. If it looks brittle or warped, replace it with a new flapper compatible with your toilet model.

Step 2: Adjust or Replace the Fill Valve

Check the fill valve for any signs of sticking or blockage. Cleaning or replacing the fill valve could resolve water flow issues. Also, adjust the water level by repositioning the float arm or float cup so the water shuts off just below the top of the overflow tube.

Step 3: Set Proper Water Level

Make sure the water level inside the tank is about 1 inch below the overflow tube. Use the adjustment screw or clip on the float to set the correct level and stop water from spilling into the tube.

Step 4: Replace Other Worn Components

If issues persist, examine other internal parts such as the flush valve seat or handle assembly for wear or corrosion and replace them as necessary.

When to Call Prestige Plumbing Werks

If you’ve tried these DIY fixes and your toilet still keeps running on and off, it might be time to call in our expert plumbers. At Prestige Plumbing Werks, we provide fast, reliable toilet repair services to help you stop water waste, reduce your bills, and restore your home’s comfort.

Our team uses quality parts and proven techniques to diagnose complex toilet problems and deliver lasting solutions. Whether it’s a simple flapper replacement or a complete toilet overhaul, we’ve got you covered.

Enjoy a Quiet, Efficient Toilet Today!

Don't let a running toilet ruin your peace of mind or household budget. Contact Prestige Plumbing Werks today for expert plumbing services you can trust.

Call us now or schedule your toilet repair service online and experience the Prestige Plumbing Werks difference!