MaP Testing

JULY 2016
1.28 Gpf survey; search, sort and compare
IMPORTANT SURVEY: Is it time that 1.28 gallons per flush (4.8 Lpf) become the national standard in the U.S. and Canada?

Most toilets sold today flush with 1.28 gallons (4.8L) or less and yet easily out-perform and out-flush older 1.6 and 3.5 gallon models. Mandating a maximum flush volume of 1.28 gallons would not impact consumer satisfaction but could save hundreds of millions of gallons of water every day. 

Take the survey!

Compare and Sort Your MaP Test Search Results

MaP-Testing has just implemented a quick and easy compare functionality. This new feature allows you to compare up to 4 products at a time.

In addition, upgraded sort functionality allows for sorting toilet models by manufacturer, model number, MaP score, bowl design, single/dual flush, and other physical attributes.

Compare your search!

New Flushometer Combinations & 183 MaP PREMIUM Rated Toilets

New Flushometer Combinations
Specifiers and design professionals: MaP now provides updated and expanded lists of MaP-tested flushometer valve/bowl toilet combinations.  Over 500 tested combinations rated at:

  • 1.6 gallons per flush (6.0 Lpf)
  • 1.28 gpf (4.8 Lpf)
  • 1.1 gpf (4.0 Lpf)

199 MaP PREMIUM Tank Type Toilets From 35 Brands
Updated PREMIUM listings include:

  • Effective flush volumes of 1.1 gpf (4 Lpf) or less
  • Certified WaterSense compliant
  • Minimum 600 gram MaP flush performance rating
MaP Website Survey — Consumer Use

MaP Testing just ran a four month survey of website users. More specifically, this data represents the number of individual users that visited and responded to the home page survey. 

Of those, over 80% were consumers, confirming that MaP Testing is a valuable consumer resource.

In addition to MaP search functionality, MaP provides 15 toilet tips on our dedicated consumer page.

MaP Website Survey — Industry Professional Use

MaP Testing visitors in the industry professional category are spread very evenly across multiple sectors, including plumbers, manufacturers, distributors, engineering consultants, and others.

The MaP-Testing site offers free industry-specific downloads and up-to-date information on industry technology and information.

Need to Purchase MaP Test Media?

Maximum Performance (MaP) testing identifies how well different toilet models are able to flush waste and then lists the ranking of each model on the website.  MaP testing is done using a realistic test media made of soybean paste having similar physical properties to human waste (e.g., density, moisture content) plus toilet paper.  Using realistic test media allows manufacturers to develop the high-performance, low water-use toilet models that consumers and building owners want.

Need to purchase MaP test media?

Want to learn more about our test media?

Want to learn more about MaP testing?

Contact Us

John Koeller, P.E.

Principal, Koeller & Company
Office – 714.777.2744
Mobile – 714.757.0679
Email –

Bill Gauley, P.Eng.

Principal, Gauley Associates, Ltd.
Office – 519.853.8847
Mobile – 416.677.6193
Email –

Are you a LinkedIn member? Join our Maximum Performance (MaP) Testing group.
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