In jointing two (2) pipes the spigot end shall be properly seated in the adjacent ball end and adjusted so as to give a uniform space for the joint, which will be made with twisted hemp packing and soft pig lead. The packing shall be thoroughly driven into the bell so that the lead, after having been poured and caulked into the joint shall have a depth of at least two inches (2"). The joints shall be thoroughly caulked with proper tools.