Tucson Morning Blend Actions Facebook Tweet Email The trouble with those outdated water systems Most old-fashioned water softeners and under-sink reverse osmosis units don’t do anything about harmful chlorine Posted at 2:32 PM, Oct 10, 2018 and last updated 2018-10-10 17:32:23-04 H2OConcepts.com Copyright 2018 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. Report a typo Sign up for the Headlines Newsletter and receive up to date information. now signed up to receive the Headlines Newsletter. Click here to manage all Newsletters ENTER TO WIN GIFTS FOR THE HOLIDAYS!