How Does toilet flush valve Work?
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**How Does a Toilet Flush Valve Work?**.
Toilet flush valves are essential components of a plumbing system that help to remove waste from the toilet bowl. Understanding how a toilet flush valve works can help you troubleshoot common toilet issues and ensure that your toilet functions properly. Below is a breakdown of how a toilet flush valve works:
1. **Fill Valve**.
The fill valve, also known as the ballcock, is responsible for refilling the toilet tank after it has been flushed. When the toilet is flushed, the fill valve opens to allow water to enter the tank from the water supply line. Once the tank is filled to the desired level, the fill valve closes to stop the flow of water.
2. **Flush Handle**.
When you flush the toilet by pressing the flush handle, it lifts the flapper in the toilet tank, allowing water to flow from the tank into the toilet bowl. The flush handle is connected to a chain that is attached to the flapper, which is a rubber valve that seals the opening between the tank and the bowl.
3. **Flapper**.
The flapper acts as a barrier between the tank and the bowl, preventing water from flowing into the bowl when the toilet is not in use. When the flush handle is pressed, the flapper is lifted, allowing water to flow rapidly from the tank into the bowl. Once the tank is empty, the flapper closes to seal the opening and stop the flow of water.
4. **Flush Valve**.
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The flush valve is located at the bottom of the tank and is responsible for releasing water from the tank into the bowl during the flushing process. When the flapper is lifted, the flush valve opens to allow water to flow into the bowl, creating a siphon effect that helps to remove waste from the bowl.
5. **Siphon Jet**.
The siphon jet is a small hole located near the bottom of the toilet bowl that helps to create a powerful suction force when the toilet is flushed. As water flows into the bowl from the tank, it enters the siphon jet and creates a rapid flow of water that carries waste from the bowl into the drain pipe.
6. **Refill Tube**.
The refill tube is a small tube that is attached to the fill valve and directs water into the overflow pipe in the tank. This helps to prevent the tank from overflowing by diverting excess water into the overflow pipe when the tank is refilling. The refill tube also helps to maintain the water level in the bowl after flushing.
7. **Overflow Tube**.
The overflow tube is a vertical tube located in the toilet tank that prevents the tank from overflowing by directing excess water into the bowl. If the water level in the tank rises too high, the excess water will flow into the overflow tube and into the bowl, preventing potential water damage.
In conclusion, understanding how a toilet flush valve works can help you troubleshoot common toilet issues and ensure that your toilet functions properly. By knowing the different components of a toilet flush valve and how they work together, you can maintain your toilet system and prevent any potential problems.
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