Fume dust is prevented when molten metal is poured into a vessel, and water spray of water mist is introduced into the vessel or onto the molten metal, creating a reduced level of oxygen concentration of about 12% by volume, preferably about 8% by volume, inside the vessel or at the molten metal surface. The technique utilizes a latch having a lifting mechanism that forces the battery module to a lifted position. The second subassembly has another yoke used to secure the second subassembly to an anchoring member. The delay signal is digitalized into a digital delay signal. The particulate is mixed into a cement paste derived from the concrete mixture using floats. The credit grading is determined by an independent entity that will not provide the financing to the borrower.