When you flush your business down the airplane toilet, you'll notice that a valve opens at the bottom of the bowl. Everything in the bowl, including the blue liquid, gets vacuumed out and is ...

Consider the 140,000 times you're likely to flush a toilet over a lifetime, and it's easy to see why toilets guzzle nearly 30 percent of a home's water use. Replacing older, inefficient toilets ...

Most are single-flush models, though the top-rated Glacier Bay model is a dual-flush toilet, meaning you can use minimal water for most flushes. All of the models below are WaterSense certified by ...