Water softening

#	Item
261	PDF Document Add to Reading List Source URL: nzic.org.nz Language: English - Date: 2006-05-22 17:55:15 Synthetic resins Plastics Ion-exchange resin Water softening Ion exchange Resin Phenol formaldehyde resin Purified water Hydroxide Chemistry Polymers Water
262	PDF Document Add to Reading List Source URL: waterprojectsonline.com Language: English - Date: 2012-06-26 15:32:02 Plumbing Valve Water industry Nitrate Water softening Sodium nitrate Chemistry Water technology Piping
263	PDF Document Add to Reading List Source URL: des.nh.gov Language: English - Date: 2013-03-10 05:00:00 Liquid water Chemical elements Water softening Purified water Hard water Ion-exchange resin Ion exchange Sodium Magnesium in biology Chemistry Water Matter