A system and method for network image propagation without a predefined network advantageously allows customers to automatically perform several system BOS installation or mksysb restoration over a virtual network with no predefined network and minimal installer configuration overhead. The present invention includes a self-contained treatment unit for controllably bleeding water from an aqueous system and delivering treatment agents, such as inhibitor agents andor anti-biofouling agents, to treat conditions, such as scale, corrosion, biofouling or the like within the aqueous system. An auger extends through the hopper and passage for conveying material to the outlet for delivery to a spinner for distributing the material.