Soooo...admitting defeat, I hang my head and pout a little. My home's hard water has won the fight. Calgon & all the vinegar & bleach in the world were not enough to overcome it. Commercial detergents come complete with chemicals that make them work, even in hard water. Homemade detergent, we had a good run. And someday, when I own my very own home, I will have a water softener installed and go back to making my own detergent. The savings are remarkable!