A bad water discharge system for a weighing system, wherein the weighing system comprises a distribution plate, at least one feeding device; at least one reserve container, at least one weighing container and at least one collection funnel, wherein the at least one reserve container and the at least one weighing container are fixed to a cage and the at least one collection funnel is fixed to a frame. For the bad water discharge system, at least one feeding device discharge plate is disposed at a lower side of the feeding device so that it leads bad water away from at least one reserve container to a sidewall of the cage, and so that the bad water originating from an upper side of the cage and from the lower side of the feeding device is bundled into one flow and is collected below the cage in suitable collection devices.