e is required for the periodicals  / fitting guides  provided here Installation guide for the fitting of domestic water softeners As  fitted to the Neptune range of water softeners Installation guide for the fitting of Reverse Osmosis Drinking  water system Installation guide on How to fit a softener in outside cabinet Autotrol 255 series regeneration valve Autotrol 255 Series  460i  Controlled Water Softener Owner's Manual (993 Service Manual for Fleck 5600 & 5600 econominder Service Manual for Fleck 5600SE Electronic valve Service Manual for Autotrol 255 / 760 Logix valve Service manual for Prismertec 1000i Delta Tibera Duplex Water Softener Service manual for Prismertec 1992 -1999 model Installation guide on How to assemble our Large outside cabinet