As low as
4 Stars It Works Better than New Ones
from wrote (June 08, 2011):
I installed one upstairs in an 1890's Victorian farmhouse. Now I want one downstairs. The extra 3 psi from the high tank make it flush better with about a gallon than the former modern toilet. One flush is enough. It's loud but it works and it looks right with the clawfoot tub. It uses a standard flush mechanism.