Thursday, 10 March 2016

How To Fix Noisy Toilet Problem?

Noisy toilet or toilet cisterns can be very annoying especially if your washroom is located adjacent to the bedroom or sitting room. It is a common problem that you will probably have to deal with from time to time even if you do everything to maintain your toilet. Fortunately, noisy toilet is something you can quickly fix using basic plumbing systems. Toilet cisterns are often the most overworked parts of the plumbing and require extra work to maintain. There are various factors that can lead to annoying toilet noise particularly when flushing. Most problems are caused by damages in the toilet tank assembly. There are two main types of assemblies used;

• Ball-cock assembly – Regulates water getting into the tank
• Flush assembly – This basically controls the water flowing into the bowl

Damages in the ball-cock assembly will interrupt water flowing into the tank and cause noisy fills while issues in the flush assembly result in noises when flushing. In order to fix the problem, you must know its cause. Here are some of the popular causes of noisy toilet and how to fix them:

Dirty valves
The number one cause of loud whining or whistling noise when the toilet tank is filling back up is restricted flow. This is often as a result of dirt and grime accumulating on the fill valve narrowing the water passage. Since water is pumped through the valve with pressure, it causes a whistling sound when passing through the dirt. To fix this problem, simply turn off your water supply then open the valve’s top to check for dirt. Remove the dirt, restore your valve top and then turn water supply back on. The noise should be gone.

Closed shutoff valve
The main shutoff valve connected to your toilet should remain open to allow swift flow of water. Then this valve is partially closed, it restricts water flow and results in the same sound produced with dirty valves and other characteristics of restricted water flow. To fix the problem, check whether your main shutoff is partially closed and open it. You should also check the washers on the toilet’s block assembly for any damages and scale buildup.

Humming water
Water hummer is another common toilet noise you may experience when flushing the toilet. It is usually experienced when the valve diaphragm washer is worn out or damaged. Humming water should be an easy repair that does not require any technical support. All you need to do is replace the damaged washer with a new one. Turn off your water supply, open the cistern top and find the ball valve. Split it open to expose the black rubber washer which should be replaced. Fix the new washer close back the ball valve and your toilet. This should be able to fix humming toilet noise when flushing.

Broken/damaged float switch
Broken float switch is another cause of noise in your toilet and can also lead to overflowing water. The damage is usually caused when the float switch is not properly adjusted and all you need to fix the issue is proper adjustment. You can use the adjusting screw to slightly unscrew the float and regulate it. It is also important to check for damages on the float switch. You may have to replace the complete switch float system.

Washer assembly vibration
If your toilet is producing loud whistling noise like a horn when you flush it, the problem is probably caused by vibrations in the washer assembly fill valve and stem. To solve it, turn off your water supply then open/unscrew the top of your fill valve and ball-cock assembly within the cistern. Remove the washer assembly, float ball and stem. Pry out the toilet washer and turn the system over before carefully pressing it back in. Firmly press the washer in then place your hand on the open ball-cock. Turn on the water to flush off any crud and dirt that may be stuck inside the system. Reassemble your toilet and then test it by flushing. The whistling noise should be gone or significantly reduced.

Old toilet
Like other mechanical systems, your toilet gets older each day and will be prone to various damages and depreciation can eventually result in annoying loud noises. When you have an old toilet, the best approach is to dissemble your cistern, clean each part independently and then reassemble the system. If you discover damaged components, replace them with new ones. Blockage and mal-adjustments are the common cause of noise in your toilet. The sound produced and its intensity should help you determine which part to look for problems.

Troubleshooting noisy toilet
Although most causes of noisy toilet can be solved without calling for extra assistance, some cases are caused by issues we cannot properly diagnose. You may have to troubleshoot the entire system for faults and defects which requires professional insights. There are various services done for toilets including oiling the trip lever, dissembling and reassembling the cistern. If you feel overwhelmed with the task, it is advisable to find professionals to troubleshoot and solve your noisy toilet.

There are several businesses that offer such services and finding them should not be a daunting task in sophisticated regions like Singapore. Nonetheless, not all offers you get will meet your unique requirements. It is therefore very important to keenly review your options before spending your money. Aspects of reputation, quality service guarantees, flexibility, customer service, use of quality replacement parts and affordability are all important. It is generally advisable to choose credible licensed companies allowed to offer the service within your area.


Noisy toilet is intolerable and can be quite embarrassing when you have guests. It is important to find solutions immediately you discover the noise to prevent it from escalating and damaging other parts of your toilet. Crud and dirt that cause blockage can be gradually pushed along the system causing major damages and calling for extra plumbing services. While most solutions are DIYs, it is still recommendable to call in professional plumbers. They have the experience and tools to solve any case of noisy toilet at the expense of a small fee. This will save you time and effort. Nonetheless, you can always handle the problem if you have the time, patience and tools.