APSWATER Now merged with ResinDepot.com 800-460-9011 Toll Free Home | Products | Tech Info | About US | <% if session"history"<>"" then end if %> Want a less complicated site? Try Here Welcome to our new high speed version of our website. This site contains less detailed info to make it faster and uncluttered. For more detailed info Return to the standard site View Cart Autotrol timer based water softener system Timer Based Water Softeners regenerate based on the amount of time that has passed since the last regeneration. Timer based system have an advantage over meter based system if you do not use enough water to make the softener regenerate at least every two weeks. It is helpful for the softener to regenerate in order to clean the resin and remove dirt that can become trapped in the bed. All about water hardness and water softeners How to select a water softener Replacement Control Heads Replacement Resin SubCategories Autotrol 255 / 940 auto timer systems Autotrol 255 / 440i auto timer systems updated : 12/24/2008 : 3:05:40 PM Legal, Disclaimers and Trademark Information