Which Water Closet (WC) or Toilet Bowl to Buy?

How to choose a WC?  Surely someone must have figure out a way to test and score the effectiveness?

Yes, there is! An organisation called MAP.





This is a test lab cater for the north Americans: USA and Canada.  I can't find other setup like this for Europe and certainly nothing like this exist in Asia.

MAP uses Soya Bean paste for testing.  Since 2005, Miso paste has replaced plastic ball bearings in toilet testing.  There are two things to look for, one is Water Sense certification and the other is MAP score.

WaterSense certification calls for a maximum volume of 4.8l and 350g of waste removal.  This should be the basic requirement everywhere.  MAP score measures the performance: how much waste it can remove.  MAP score of 500 means 500g and 1000 means 1kg.

Most of the brands in the database are American.  The ones that come up frequently and available in Singapore are - American Standard, Kohler and Toto.

A search on one-piece, WaterSense Certified, MAP premium rated came up with a single page listing, I recognise these three:





Anyone knows what happened to Caroma?  They used to be popular here. 

How do other popular brands here fare?

Roca fared quite well.  These are two-piece designs, but I supposed their one-piece designs under the same name should score the same.

 

I can find only one from Johnson Suisse:



Many other local brands are not listed.  You check if your favourite WC is listed in there: http://www.map-testing.com/consumer-household-toilets/


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