Razor blades last longer with softened water.
From research we found that razor blades lasted seven weeks in soft water, while only two weeks in hard water.
Enjoy a more comfortable shave using softened water with razor blades that stay sharper for longer.
Hard water corrosion:
The coating on razor blades is corroded by hard water minerals.
Photographs through an electron microscope proved that the blades received more damage in hard water than in softened.