They’re present in almost every modern home: toilets equipped with two buttons, usually one smaller than the other. You probably use them every day without really thinking about their purpose. And yet, this small feature has a big impact—it can save liters of water daily, lower your bills, and help preserve natural resources.

If you’re looking for an effortless ecological habit, this is one worth adopting.

What Are the Two Buttons For?

Dual-flush toilets are designed to adjust the amount of water used depending on what needs to be flushed.

• The small button (often on the left): releases about 3 liters of water, intended for liquids.
• The large button (usually on the right): releases about 6 liters of water, better for solids.

Instead of wasting between 6 and 9 liters per flush—as with older models—you now use only what’s necessary.

Why Is This a Smart Idea?

• Save up to 60% of water daily, depending on your usage.
• Noticeable reductions on your water bill month after month.
• An easy way to preserve resources without changing your lifestyle.
• Simpler maintenance and fewer plumbing issues compared to older single-float tanks.

Pressing Both Buttons at Once: Does It Work Better?

Some people press both buttons together, thinking it will create a stronger flush. In reality: