dreamer
If your remodelling project includes Building Permits and Inspections — as it should to protect the resale value of your home — then an Inspector will not approve a new toilet that is more than 1.6gpf.
For example, suppose you went to Canada and bought a 3.5gpf toilet, or bought a commecial toilet. The inspector would not sign-off on your final inspection and a lender won’t lend to your buyer.
There is an article at http://www.terrylove.com that recommends 1.6gpf toilets that flush well.
Heck, in Australia, they are making toilets with two flush settings — 1.0gpf for liquids and 1.6gpf for solids. A well-made toilet shouldn’t need 5 gallons of drinking water to flush properly.
