Residential Softening

General information on water softening

MPCA's skinny on water softening

Background information on water hardness

The WQA Water Treatment for Dummies Handbook

Water softening FAQs

The Minnesota Water Quality Association  glossary provides water definitions and terminology helpful to the general public.

more comprehensive glossary is found on the Water Conditioning & Purification International site, which defines terms applicable to community water resources concerns.