Declaration matrix

In order to meet DEFRA compliance requirements for WC suites in relation Reg 4(1)(a) of the Water Supply (water fittings) Regulations 1999 it is also necessary for a manufacturer to supply a declaration matrix confirming which flushing cisterns have been tested with which WC bowls.

On this page you find the most up to date information showing tested combinations segmented by close coupled ceramic WC suites, Conceala and Prosys products. Together with the DoP and DoC backflow prevention this document provides all the information and evidence of compliance a water company would require.