The Autotrol Softener valves are slightly different to Clack and Fleck as they use a valve disk technology which is opened by a camshaft. These disks and other parts within the valve are inexpensive to replace making maintenance of the system very cost effective.
Simplex Water Softeners are best used suited to applications where soft water is not required 24 hours a day. Utilising a single vessel hard water will pass to service when the system goes into regeneration.
Duplex Water Softeners are able to supply treated water 24 hours a day. With the use of 2 vessels once vessel 1 is exhausted the supplied control valve switches demand to the vessel 2 therefore ensuring softened water is always available.