The directions call for two scoops of powder, but actually, if the sample turns pink after one scoop, you don't need to add the second scoop.

Where do you live? In some areas of the country, some pools do better operating at higher CYA levels.

Sorry it has been kinda slow to get all the new registrations processed. There have been a lot of new people registering recently!

Welcome to the Pool Forum, by the way!