4e3eafac_ell_Water_Treatment_Strategies__What_it_does
[Treatment process] Sequestration [Contaminants Removed/Altered] Can be used to control mineral staining and corrosion [What it does] 
By surrounding ions with a polymer, they are shielded from posing problems. Often accomplished by injecting a solution into the water. Can also help with corrosion control
Well Water Treatment Strategies
What it does