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What Causes a Whistling Toilet?

whistling toiletIt’s normal to hear a whooshing sound of rushing water when a toilet is flushed. What’s not normal is to hear loud whining or high-pitched sounds as the toilet refills. A whistling toilet is not just annoying, it can be a sign of a problem with your tank fill valve, a faulty ballcock assembly or even a leak. To diagnose the cause of the whistle, it’s best to contact a professional plumber for repairs.

Is your whistling toilet getting on your nerves? Here are a few possible explanations for this strange sound.

Assemblies Inside Your Toilet Tank

Toilets have two assemblies inside the tank: the flush valve and the ballcock. The flush valve assembly controls the amount of water flow to the bowl that comes from the tank. The ballcock assembly regulates the amount of water that fills the tank.

How’s it work?

When the toilet is flushed, the lever raises the chain that is attached to the flapper. When the flapper rises, water goes through the valve seat into the bowl. Then, the tank empties. Then, the stopper drops over the opening in the tank causing the float ball to tip the ballcock assembly for a new supply of water. This new supply of water passes through the tank fill tube.

Any blockage or damage within that ballcock assembly, such as a crack in the float ball or a damaged washer, can limit the flow of water which results in a whistling toilet.

Water Flow Restriction

When the tank is trying to fill but water flow is limited or restricted, it can result in a noisy toilet. You can do a simple DIY inspection. Check that the main shutoff valve is fully open, if it’s partially closed, the tank may not be getting enough water. Also look for any damage or buildup, both could affect water flow as the tank tries to fill up.

In any case, it’s best to contact a plumber to diagnose the problem.

Fixing A Whistling Toilet

You can only ignore a whistling toilet for so long. It’s important to understand that it’s not just the sound that you would be ignoring. If the problem is due to a faulty fill valve, it can waste a lot of water and result in high utility bills. If the problem is due to a leak, you could face a lot of water damage and home repairs. Address the problem head on. Give us a call to diagnose the issue and make the necessary repairs.

At Brown’s Heating, Cooling and Plumbing, we offer dependable emergency plumbing services for residential and commercial properties throughout Monmouth and Ocean County, NJ and surrounding areas. We’re here to help any day, night 24/7! Call 732-741-0694.

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