Abstract: This technology relates in part to polypeptide compositions and to methods of treatment using the compositions, such as the treatment of diseases or conditions that are accompanied by microbial or viral infections, wounds or sores and the treatment of surfaces contaminated by microbes, viruses or other pathogens.

Abstract: The herein described apparatus is a novel expansion tank and method for use with a water system. The housing of the expansion tank contains a spring biased piston. When the water pressure of the system is sufficient to overcome the spring's resistance, the piston will be compressed against the spring allowing water to flow into the expansion chamber. As the water pressure of the system decreases, the spring will bias the piston towards its rest position and force water from the expansion tank. By using a piston in place of the prior art rubber diaphragm a more robust mechanism to contain water resulting from thermal expansion is provided.

Abstract: A portable, fully self-contained pressure wash-down system operates in a storage mode for storing and hermetically sealing system components when the system is not in use, and works in an operation mode for allowing portable operation of the system. The system includes a container adapted to house the system and a lid connected to the container by a hinge. The lid sealingly engages a top portion of the container to store and protect system components when the system is in a storage mode. The system includes a pump disposed in the container. The pump includes a low pressure inlet for delivering low pressure water to the pump and a high pressure outlet for delivering pressurized water from the pump. The system also includes an intake line having first and second ends, wherein the first end of the intake line receives water from a water source and the second end is connected to the pump inlet. The first end of the intake may contain a filter for excluding harmful debris from the pump or other system components.