Water Supply Industry Interpretations and Advice
- Area of Interest : Installation
- Topic : WCs flush volume
- Title : Marking to show intendedflush volume
- Clause Reference : Regulation 4 & Schedule2 paragraph 25 (f)
- Reference Number : I42
- Decision Date : June 2014
As part of a complete WCsuite, where the component parts are particular to that make/model and are not interchangeable with any other make/model, either the cistern or the flushing valve can be marked to show the intended flush volume. This marking can be in any plane so long as it is readily identifiable.