How can I remove hard water deposits off plumbing fixtures?

Bar Keepers Friend is less than $2 a can and you don't have to use hardly any elbow grease. It works on fixtures, porcelain....everything. I have tried all others(limeaway,clr,kaboom,tilex,oven off,orange pledge,scrubbing bubbles and any other product at the local store). Only BKF removes hard water. I live in Austin,TX. All water comes from an aquifer and is excessively HARD. Two bucks is hard to beat. ... more