Improvements in or relating to valve assemblies

A toilet may leak at the valve between the cistern and the toilet bowl or pan or the float-regulated fill valve, traditionally having been a ball valve, where a ball float closes a valve once the cistern has filled to a pre-determined level. According to the present invention there is provided a leak detector for an item of sanitary ware, the detector comprising a planar body having first and second major surfaces, the first surface having a finish operable to indicate a flow of water arising from a sanitary leak, the second surface having an adhesive operable to be placed upon a surface of sanitary ware; the first surface being operable to guide water arising from a leak such that it passes over a surface portion such that any flow from a leak is more readily identified.