Abstract: A weighing apparatus for weighing a flowable material being conveyed along a distribution system from a source downstream towards a user location, comprises a product carrying surface which has an upstream end and a downstream end, a first axis extending from the upstream end in the intended direction of product flow, and side walls upstanding on the product carrying surface. A base is also provided for supporting the product canying surface. A support supports the product carrying surface on the base to allow flexing of the downstream end of the product carrying surface in a vertical direction about a second axis extending transversely of the first axis, in response to weight of product on the product carrying surface. A load cell monitors the amplitude of flexing of the product carrying surface and provides a signal representative of the weight of the product on the surface in dependence on the amplitude.