Think "Oxy Clean with Enzymes"
Wow!  This is some good stuff.  We have rusty well water that, even after regular and lengthy softening cycles with Rust-Out (or Iron-Out or Res-Up or other rust-busting aids), gradually leaves a dingy tinge to whites.  I have found, through a great deal of experimentation, that regular Arm & Hammer (&#34;Powerfully Clean&#34;) powder detergent is, for us, the most effective with OxiClean or other special pre-wash aids.  Just a few months ago, I found Biz at a bargain price in a local big box store and decided to give it a try.  Am I ever glad that I did!  Using this to presoak whites in hot water for a few housrs, then adding the Arm & Hammer, the whites are gradually losing the yellowish tint from the well water.  It must be the enzymes.  I will continue using this unless and until something better comes along.  Very happy.<br />NOTE: I did seem to notice some minor loss of color on dark clothing when using this.  I'll still use it just on whites and lights, though.  Your results may vary.
Rating: 5 stars