If you've got a busy household or just want a toilet that gets the job done quickly, the tornado flush might just be your new best friend. Another perk? Tornado systems are quieter than you'd expect.

In fact, Consumer Reports' most recent toilet tests name two $100 WaterSense models as CR Best Buys. By law, all toilets made since 1995 must use no more than 1.6 gallons per flush. Toilets that ...