Dual flush toilet– Technology and Difference

Have you ever wondered why there are two buttons on the flush tank?

However, except for the two buttons, it looks similar to an ordinary toilet, but there are differences. This is water saving!

The main difference is that there are two different buttons on this flush tank. Saving water by minimizing flushing water depends on the type of waste you want to flush. Compared with ordinary flush sinks, the opening at the bottom of a double flush toilet is relatively larger because more space means greater water pressure and less chance of clogging.

Dual flush water closet

Did you realize that a regular flush uses the same amount of water and time as flushing solid or liquid waste?

This dual-flush technology is designed to save water. Double flush means you have two different mechanisms; for liquid waste, you need less water; therefore, a smaller button or a semi-flush button can be used. Likewise, you’ll need more water to dispose of solid waste and use larger buttons or flush entirely. With this, you can save approximately 1,000 gallons of water per year.

While their main purpose and principle are the same, they are designed to flush waste down the drain, the difference lies in the mechanism. Dual flush toilets feature a unique flushing mechanism that helps regulate the amount of water required to flush liquid or solid waste.

Dual flush mechanism of toilet

In a double flush, what is a siphon and how does it work?

A toilet siphon, also known as a flapper valve, is a one-way valve designed to harness the natural power of siphoning to facilitate flushing. Because the toilet’s siphon is a one-way diaphragm, it pushes water up and down.

The siphon draws water by pressing a button, and the water then passes through a folded diaphragm gasket and out the siphon outlet. Gravity then kicks in, pulling out the remaining water until the tank is empty.

In a double flush, the full flush works the same as any regular flush, but the mechanics of the half flush are different. During the half-flush process, the water suction is cut off midway. Another type of siphoning is done when the half flush button is pressed.

Wall hung toilet with dual flush

This siphon valve has four squeeze cuts on the bottom of the stem that allow air to enter the valve and break the airtight seal mid-flush, making it 50% more efficient.

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