Specifications include, but are not limited to: Exterior Cleaning and Application of New Architectural Coating; a. Provide all labor, equipment, materials and incidentals required to clean by high-pressure water blast the exterior surface of the exposed tank wall including a rinse down using a minimum 5 percent chlorine solution to kill all mold and mildew. Perform any incidental remedial work required to the tank wall including removal of efflorescence and minor patching to provide a sound surface for the application of a water resistant coating. Apply two coats of Tammscoat to the exterior of the tankExterior Cleaning and Application of New Architectural Coating a. Provide all labor, equipment, materials and incidentals required to clean by high-pressure water blast the exterior surface of the exposed tank wall including a rinse down using a minimum 5 percent chlorine solution to kill all mold and mildew. Perform any incidental remedial work required to the tank wall including removal of efflorescence and minor patching to provide a sound surface for the application of a water resistant coating. Apply two coats of Tammscoat to the exterior of the tank