Is it possible for water to be of different hardness in different parts of Mid-levels? After 3.5 yrs in Mid-levels and no problems, we just moved to Macdonnell Rd and are suddenly finding all our whites turn dingy in the wash. Eeek, my sofa covers are white!!I need to solve this before they're due for a wash. We've had the washer checked out, it seems fine. Against my eco-principles we're using fabric softener now, and hot water for the whites. Still, dinge. Anyone else had this problem and solved it?