Reduce the time of the changeover process.

Find an alternative welding technique to weld the tank insert to the flush box after changing its material from polystyrene to polypropylene.

The changeover procedure was reduced by about 50%, a modified changeover process was formed and workers were trained to follow it.

Alternative welding techniques were experimented and hot plate welding proved to be the best alternative weld strength of 118.6% of the parent material.