The Duravit Starck 3 2226090092 with GEBERIT 111.335.00.5 UP3 20 tank is part of the Toilet
test program at Consumer Reports. In our lab tests, Toilet
models like the Starck 3 2226090092 with GEBERIT 111.335.00.5 UP3 20 tank are rated on multiple criteria, such as those listed below.
Solid waste removal: The ability to move simulated waste through the bowl and trap.
Noise: Flush quietness without the seat.
Bowl cleaning: How well flushing cleaned the bowl's front and sides.