Corner toilets typically come in two pieces ... so they don’t work well in homes with low water pressure. A toilet with a dual-flush mechanism uses a canister to control a gravity-flush system.

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 ...

For toilets with dual flush options, we experimented with both ... wall-mounted toilets, corner toilets, and toilet-bidet ...

And all the toilets we tested this time aced our liquid-waste tests—a first. Dual-flush toilets, which include a separate setting that uses only about one gallon per flush for liquid waste ...