Water saver flush system

Abstract

A water saver toilet that produces a larger water spot () in the toilet bowl () and a better flushing, and that enables partial and full flushing. A trapway () that extends from the toilet bowl outlet to a drain (), has upper and lower traps () and a trapway passage () that extends between and into the traps. The lower trap is constructed to be sealed by water therein prior to each flushing, and a pressured air source () applies pressured air to the trapway prior to a flushing. The pressured air in the trapway pushes some upper trap water into the toilet bowl to increase the water spot therein. A first container () lies in the water tank, and the water therein can be flushed down from the first container though a coupling region () and though a flush valve (), for a partial flushing. A full flushing is achieved by opening a second valve () to pass water lying in the tank around and above the first container, and through the coupling region and the flush valve.