Modern dual-flush toilets are everywhere these days, but many people still don’t understand their true purpose. Those two buttons aren’t just a design quirk—they’re a simple, ingenious way to save water and money while helping the environment. Here’s what you need to know about how they work and why using them correctly matters.
What Are Dual-Flush Toilets?
Dual-flush toilets feature two buttons (or sometimes a lever with two options). One is small, the other larger. Each button releases a different amount of water:
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Small Button (3–4.5 liters): Meant for liquid waste.
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Large Button (6–9 liters): Designed for solid waste.
By choosing the right button, you use only as much water as you actually need.
A Simple Idea with Big Results
The design relies on two exit valves controlled by the buttons. Pressing one or the other directs water flow accordingly. It’s a small decision that adds up over time—conserving water with every flush while trimming household utility bills
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