Modern systems have evolved far beyond the simple timers of the past. Today’s "IntelliSoft" and metered systems—like those found in Kenmore's lineup
Any “salt-free” conditioner (they don’t work for 40278’s hardness) and any rental program from Culligan or EcoWater (you’ll pay $50/month forever for a $600 machine). 40278 water softener
Effectively handles up to 120 grains per gallon (gpg) of hardness. Modern systems have evolved far beyond the simple
Soft Water Made Simple: A Guide to the Kenmore 420 (40278) Water Softener 40278 water softener
The regeneration cycle started at 2:00 AM.
