Just wanted to say "thanks" for the Pool School. It really helped me solve an algae issue that I didn't even know I had. My SWG couldn't keep up with chlorine production, and my FC levels were around ZERO for a month. Thanks to the "How to Shock Your Pool", I faithfully followed the instructions (yes, I thought it was CRAZY to add that much clorox to a pool) and within a week my water was so much clearer than before... and now my SWG is working great to keep FC levels above 5ppm.
- Mark -