Help with settings on ultrasoft 250
At my lakehouse there is a kenmore ultrasoft 250 1 cu. ft. water softener. I had the water tested before the softener and it read 18 grains hardness + 2 ppm iron. Its all elecronic so I enetered the hardness at 30 3 day max. days between regenerations and the extra clean set to on. Does this sound right? what should the salt efficiency be set to onn or off? Generally I recharge before I leave and the neighbor turns the water to the house off and unplugs the softener. Most of the time there are 2 people here with company in and out. However at times there are 6 here. We only use it on weekends.