World Toilet Summit: A Flush of Excitement

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Kohler's Sterling Rockton model, introduced in May, retailing for $250, features a dual flushing system. Press one button for a "light" 0.8 gallon flush for liquid waste. Press the other button for a booming, extra-strength flush for solid waste. You may never have to flush twice again.

"We find that families with potty training kids really need the stronger flushing toilets because little kids get fascinated with the toilet and tend to throw toys and all sorts of things inside," says company spokeswoman Rebecca Barry.

It's a fascination that apparently lasts a lifetime, propelling each generation into a brave new world of toilet technology.

Buck Wolf is entertainment producer at The Wolf Files is published Tuesdays.