I guess that wasn't my final set of questions. I added the stick and the chlorine started to come back, but I woke up this a.m. to light green water. I tested for chlorine and it was basically zero. We're going to be gone from 7 a.m until 1 pm and I didn't have any bleach, so I added shock to the pool to try to raise the chlorine level quickly. Should I add polyquat, or test and add bleach when I get home or ????? Ideally, we're having people over at 4 today so I want to clear this up of that is even possible.