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Tips From the Pros: How to Choose a High-Efficiency Toilet

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If you’re looking to save water and money on your home’s or business’s utility bills, you might consider replacing your toilets with high-efficiency models. Since 1994, federal law requires that all new toilets use no more than 1.6 liters of water per flush. Some manufacturers have gone one step further, however, by designing toilets that use even less water. Known as a high-efficiency toilet, it’s a smart investment that reduces water usage in homes and businesses.

Gravity-Assisted vs Pressure-Assisted

When choosing a high-efficiency toilet, Adeedo!’s Southern California plumbers highly recommend you consider the method by which it removes waste. Although there are dozens of types of toilets on the market, most remove waste in one of two ways: gravity or pressure.

Gravity-assisted toilets feature a storage tank of water on the back that flushes waste when the lever is pulled. As water from the tank is released, it siphons water from the bowl into the drainage pipe. Gravity-assisted toilets are simple, reliable and easy to repair, making them a popular choice.

Pressure-assisted toilets, on the other hand, use water and pressurized air to remove waste. They feature a tank in which pressurized air is stored. When you pull the lever, the air and water is released, thereby flushing waste from the bowl. This design means that pressure-assisted toilets don’t need as much water as their gravity-assisted counterparts.

What About Dual-Flush Toilets?

All high-efficiency toilets are designed to use no more than 1.6 liters of water per flush. Dual-flush toilets, however, allow you to choose from multiple efficiency settings. While options vary depending on the manufacturer and toilet type, a typical dual-flush toilet may offer a 1.6- and 0.8-liter setting. Using the former may provide stronger flushing power whereas the latter increases efficiency.


Like standard toilets, high-efficiency toilets are available in a variety of heights, the most common of which is 15 inches. However, there are also high-efficiency toilets with a height of 17 to 19 inches. Known as comfort-height toilets, they are designed for use by taller people who can’t comfortably use shorter toilets.

For more information on high-efficiency toilets or help repairing or installing one, schedule an appointment online or give our Los Angeles and Orange County plumbers a call at (833) 936-1791. Adeedo! is here for you.

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