How can the Controllable Flush be legal when the federal Water Conservation Act says your toilet must always work at 1.6 gallons per flush (gpf)?
That rule is only for toilets manufactured after the Act went into effect in 1994. If you build a new home, the toilets you install must use no more than 1.6 gpf. But the Controllable Flush is not a toilet its a retrofit device, so its not affected by the Water Conservation Act. It does, however, give you the same water-conserving benefits of a low-flow toilet without having to replace your existing toilet.
