NSF has informed NHSE and I that the RWC 15mm Easifit tee type valve has failed some of the audit performance tests from HTM 04-01-part A:
The failures identified during audit testing (changing water supply pressure and stability at reduced flowrate) in that there are two instances where the mixed water temperature is recorded as being 3.4°C above the maximum permitted value for shower outlets with the test value recorded as being 45.4°C.
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