The tech in my toilet must have an air bladder. As the water fills in the tank, the bladder gets compressed. When you flush, the water gets pushed through very fast making it very effective. I think you are saying you want effective toilet irregardless of efficient. This one is both. Having used it, i wouldnt buy one that doesnt have that tech if funds were available.
It does have 2 flush buttons. The
pee button works for all uses. Mine is a koehler but im sure others have the same feature of pressurizing the water.