14th Edition Maximum Performance (MaP) Test Report AvailableBy
Maximum Performance Testing (MaP) is an independent report of toilet flushing performance developed by John Koehler and Veritec Consulting.
Scores are a general barometer of a toilet’s ability to remove bulk media. You can figure out what “bulk media” means. The MaP test protocol was designed to closely replicate “real world demand,” incorporating soybean paste as a test media and measuring how many grams can be flushed up to 1,000 grams or 2.2 pounds.
If you think that’s a tasteless mental image, you are correct. It’s supposed to be. With apologies to the geniuses in marketing, we haven’t seen one real world case of anyone passing golf balls.
The EPA requires that WaterSense labeled toilets be able to flush a minimum of 350 grams in the MaP test. The top-rated toilets can flush at least 1,000 grams at one time (a real world test you really don’t want–that’s more than two pounds. At present, MaP test is the main, if not only, independently recognized test designed to gauge this rather important parameter.
First published in 2003, the 14th edition is available free-of charge on the websites of the Canadian Water and Wastewater Association (CWWA), the California Urban Water Conservation Council (CUWCC), and Veritec Consulting Inc.