Yes. Although this new replacement toilet only flushes 0.8 gallons per flush, it is effective at clearing the bowl. The Niagara Shadow toilet is rated by Maximum Performance, MaP, to be able to flush at least 800 grams of solid material, which rates this toilet in the highest possible category that MaP offers, “highly recommend”.
MaP is an independent testing program that is not affiliated with any manufacturer or group. Since 2003, MaP has tested over 4,500 different toilets and is the leading toilet flush performance testing center in North America.