1. Use the products listed. Our selection is based on actual chemical ingredients, rather than on the Jacks Magic marketing plan for product differentiation.

2. BUT, get a K2006 kit, and learn to use it, FIRST. There's no point in removing stains till you can successfully measure and manage the basic water chemistry parameters. Stain removal (and continuing control) REQUIRES you to manage water chemistry on a continuing basis. (http://pool9.net/tk/)

3. Ascorbic acid and chlorine are mutually destructive: if one is present, then the other is not.

4. A KEY point of stain control is identifying the SOURCE of the problem. In many cases, you are simply wasting time and money if you don't first find the source of the problem.

Good luck!

(registration updated!)