Hello,

I am working in a project undergoing major refurbishment. It is my understanding that for major refurbishments assessed under NC existing water fittings need to be considered on both WE P1 and WE c3. Unfortunately the building I am assessing has no O&M manuals and therefore there is no information regarding the water consumption of the existing features. What would be the best way to evaluate the consumption in this scenario. Would actual measurement on site be acceptable? If so, what sort of evidences would we need to be provided?

Thank you very much in advance.

Regards

Alicia