Bottled spring water is processed by "carbon filtration, uv treatment, microfiltration, and ozonation". Could it be that uv treatment alone isn't sufficient for sterilization?
[/I] Up Next - Hobgoblin
After That - Czech Pilsner
Primary - Humboldt Hop Rod (4/24)
Primary - NOT Wheat AG SNCA (5/5)
Conditioning - SNCA Clone (3/3),