nrv

I have replaced an outside tap which did not have a NRV. There is a service valve under the sink which has an arrow. Is this a NRV? Original was fitted 1989 by builder during extension work.

Hi all, seen similar threads from years ago, but wanted up-to-date advice i guess. I'm renovating our downstairs cloakroom and going from single taps to a monoblock. Now both hot and cold feeds do (did) give fairly equal water pressure, so do i need to fit a NRV to the hot feed? We have a combi...