When 1.6 toilets were introduced, there was resistance to limit the water closets only to residences. Here’s the news story on what the ASPE Research Foundation found.

courtesy of Plumbing & Mechanical Magazine, August 1992
by Jim Olsztynski

1. 6 Water Closets Questioned For Commercial Applications

Ultra-low flush water closets should be limited to residential …

Continue reading ASPE Research Foundation details findings of its ultra-low flow water closet study