A water efficient toilet system is provided comprising a toilet basin comprising a divider, a first toilet basin, a second toilet basin and a toilet rim. The divider may separate the first toilet basin from the second toilet basin and the first toilet basin may comprise a first drain conduit opening and the second toilet basin may comprise a second drain conduit opening. The first toilet basin may be dimensionally larger than the second toilet basin and the first drain conduit opening may be dimensionally larger than the second drain conduit opening. The first toilet basin may comprise a first set of fluid-flow apertures and the second toilet basin may comprise a second set of fluid-flow apertures. The toilet rim may comprise a fluid-flow conduit disposed interior to and unitary with a body of the toilet rim.