Toto Anti Siphon 528 Making Noise- How to Fix

Toto anti siphon 528
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Toto anti-siphon is an essential tool, especially at home. Most people prefer using toilets to using pit latrines. The toilets are crucial, especially at night when one is terrified to go to the pit latrine.

Despite its advantages, the toilet may make noise when in use or when not in use. Luckily, the article shows the common causes of noise in the toilet and the best process of solving such problems.

Causes of toto anti siphon 582 toilet making noise and possible troubleshooting process

toto anti siphon 528 making noise

Despite the toilet being functional, sometimes it may produce funny and strange sounds when used or not in use. The noises are made, especially when using the toilet for a long time, approximately four to five years and above. The sounds indicate leakages or damaged toilet parts such as the water inlet valve and toilet pump. To identify possible causes of toilet sound, types of noises, and the troubleshooting steps, read the information below.

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Types of noise emitted from the toilet

1. “Ccchhh” noise

Many people experience the emission of the “ccchhh” noise from their toto anti siphon 528 toilets. The noise worsens with time, increasing irritation and discomforts in the room, and it primarily affects children and aged people. Therefore, it is advisable to troubleshoot the problem immediately to improve comfortability in the house. Also, troubleshooting the “ccchhh” noise brings quietness and peace to everyone within the house.

“Ccchhh” noise also indicates a leaking toilet. If you hear the “ccchhh” sound, first check the toilet tank flapper condition because the flapper wears out with time. Once the flapper wears out, a strange noise is constantly produced. It is easy to troubleshoot the fault flapper as long as you follow the recommended steps. To troubleshoot the problem, follow the steps below.

a. Collect all equipment required to avoid distractions during the repairing process.

b. Disconnect the toilet from its position and lift it carefully. Place it in a different position.

c. Remove the toilet tank lid. Ensure you handle the lid carefully to avoid damaging it.

d. Locate the position of the toilet flapper. It is found at the bottom of the toilet tank on top of the toilet hole.

e. Test the flapper by flashing the Toto toilet. The toilet must function correctly unless the flapper is distorted. For instance, force water down the toilet to check if the bar raises the chain, pulling the toilet flapper out of the toilet hole. If the bar fails to lift the chain, the chain is not functioning correctly. To fix the chain problem, change the chain hole in the flush bar by using appropriate tools such as a wire cutter.

f. Test the flapper to see if it seals the hole. If the flapper functions but water overflows and ticking noise are still emitted, regulate the float level to the desired position. To lower the float level, use a screwdriver and a wrench to lower and screw the float in place.

g. If the above steps fail to eliminate the ticking noise, consider contacting a professional plumber to help you identify and fix the problem. Also, consider replacing the toilet if none of the above methods, including a plumber.

2. Sudden flush noise

Sudden flush noise

Sudden flush noise is commonly known as phantom flush. The flush occurs when the toilet suddenly flushes even when not in use, especially when leaking. The flush noise at times can be terrifying, especially at night after watching scary movies. To fix the problem, first, find the root cause of the noise before repairing the toilet.

 There are several reasons why the toilet may suddenly flush even when not in use. They include; the presence of toilet leaks, incorrect positioning of the water refill pipe, and inaccurate positioning of the toilet chain. To fix the sudden flush noise, you may have to follow the steps below.

  • First, determine the root cause of the noise by inspecting the toilet carefully.
  • If the problem is a fault toilet flapper, replace the flapper with a new one that suits your toto anti siphon 528 toilets.
  • Regulate the toilet chain and place the refill tube in its correct position.
  • If the problem is due to a faulty valve drain, replace it with one that suits the toilet model.
  • After applying the above methods, but the problem persists, seek help from a skilled plumber.

3. Continuous toilet banging noise

When flushing the toilet, a loud reverberating sound may be emitted and is usually known as banging noise. The sound, in most cases, indicates increased water pressure or limitation of water flowing into the toilet tank. Once the pressure in the water heater increases, the toilet flush releases more pressure generating loud reverberating noise. Fixing the problem is easy and requires the following steps.

  • Before troubleshooting the problem, inspect the water pressure if it is flowing in the recommended state.
  • If the pressure is too high, reduce the pressure to normal using a screwdriver to lower the water pressure valve. Lowering water pressure eliminates the banging noise.
  • If the water pressure valve is damaged, replace it with a new one, but seek help from a nearby service center or repair shop if you are not sure.
  • Also, install an air chamber or contact a professional plumber to help you install the air chamber.

4. Irritating water refill noise

Sometimes, you can hear your water refill producing noise due to uneven water transmission inside the supply pipe. The noise can be irritating and disturbing in most cases. Therefore, it is advisable to troubleshoot the issue instead of ignoring it. To fix the problem, follow the steps below.

  • Unplug the toilet from its position and slowly lift it to another pace.
  • Locate the position of the water refill before repairing it.
  • Inspect the condition of the water refill for any defaults present, e.g., much water flowing into and out of the toilet pump.
  • If there is too much water flowing through the pipe, regulate the flow to eliminate the noise produced by water flowing through the line. The process is done by controlling the supply valve found under the toilet tank. The supply valve is also around beside the toilet tank.
  • If the problem persists, seek help immediately to eliminate the irritating noise produced by water flowing through the pipe.

5. Hissing sound

Sometimes, organic matter and dirt may accumulate in the water valve resulting in the clogging of the valve. Once the valve is clogged, water flowing through the pipe is restricted, making the toilet tank fill faster, resulting in producing a hissing sound. The hissing sound is also produced by a cracked toilet tank or any toilet part that is leaking.

The hissing sound can be fixed by following the steps below carefully.

1) Switch off the water supply source and empty the toilet by flushing all excess water before inspecting the water inlet valve.

2) After draining the tank, find the position of the water valve. It is usually located directly above the spot where a connection between the tank and supply hose exists.

3) Open the toilet cap and remove the cover. Remove any removable toilet components using a screwdriver and wrench if the parts are held in position.

4) Inspect the valve carefully and identify any problems.

5) Troubleshoot the valve depending on the cause of the problem. While repairing the valve, consider handling the toilet components carefully to avoid damaging them and increasing the repair costs.

6) Test to see if the hissing noise has been eliminated. If not, consider replacing the valve with a new one. Before replacing the valve, research and find the best valve that suits your toilet. If the problem persists, consider replacing the whole toilet or seeking help from the repair shop.

You Might Be Interested to Read: Why Water Pipes Making Noise Humming- Causes and Solutions.


If your toilet is making noise, use the information above to identify the cause and possible solutions to the causes identified. Also, consider following the manufacturer’s instructions on replacing parts such as water inlet valves and toilet tanks, among others.

Finally, consider serving the toilet at least thrice a month, and you clean it daily using recommended detergent. Also, maintain the toilet to increase its lifespan.

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