Our Dyne Power Packs Soft Wash Builds are composed of the highest quality components. For the Heart of the build, we use a Lifan 7hp electric start engine. We currently offer Comet P40 and AR 45 diaphragm pumps. Both pump options are capable of 11GPM@300PSI. These systems are used for roof cleaning, residential & commercial soft washing, and high-volume rinsing. These diaphragm pumps are built to handle highly corrosive chemicals and surfactants.