The presence of certain ions in water causes problems such as buildup of limescale, fouling, galvanic corrosion, and interference with the action of soaps.
Water softening is the removal of those ions. The resulting water extends plumbing and equipment lifetime and is more compatible with soap.
This module takes 30 minutes to complete. At the end of this module, you must obtain an 80% or higher on the Test Your Knowledge for it to be marked as complete. You have unlimited attempts and the highest attempt is recorded.