Yes, as Evan put it, Phosphate problems are 1: 1000 (tho it's the latest pool store scam0 and Nitrate problem make phosphate problems look common. I think we've seen one person with a REAL phosphate problem and HE handles it by keeping his borates (as in Borax) level at 50ppm, and otherwise simply follows the B-B-B method religiously.

Carl