A hydration pack has a reservoir for holding fluid, a fluid conduit extending from the reservoir for passage of the fluid from the reservoir, and a bite valve connected to a distal end of the fluid conduit. To prevent the pressure applicators from tilting when incompletely overlying the web of corrugated board, the machine includes a stabilizer configured to prevent one or more of the pressure applicators from tilting. The shunt resistors can be formed from high-resistivity metal nitrides or cermets. The lumen of the transplant widens in a steadily conical manner in the region of its distal end and forms a diffuser there.