One aspect is a brush system for a washing machine including a plurality of independent brush sets. Also, the present invention provides a method for manufacturing flooring, comprising the step of processing flooring which includes a sheet-like molded body of the resin composition and manufacturing the sheet-like molded body by processing the resin composition through extrusion or calendaring methods. Billing is alternatively based on a store-credit or account debiting scheme. Each air passageway connects with a different launch port. The protrusion is closer to the projection system than other parts of the barrier member to promote a meniscus of liquid to adhere between the protrusion and the projection system. A hydraulic torque locking mechanism is incorporated into a casing manipulation assembly.