[McBuff]

The real problem isn't the ability of new toilets flushing away the waste. . .the problem is that with the less water in the toilet. . the "waste" sits on the bottom of the toilet and, when flushed, it leaves "residue" along the sides and bottom of the toilet. . .which must then be cleaned with a toilet brush and flushed a second time. With more water in the toilet, the waste material floats and doesn't leave its nasty residue when flushed.
(Sorry for the explicit technical explanation!)

[Dr. Sivana]

The real problem isn't the ability of new toilets flushing away the waste. . .

It depends on how much waste. At times, the plunger had to be taken out ... yuck. I actually went to Canada to get 3.5 liter toilets when we built a home in 2006. Now we are stuck with low flow toilets, and yes, we multiple flush (though not 10 or 15 times. I suspect Smopes and Factcheck will ding TRump oin those, just as they will refute his statement of modern cars being made out of paper maché).