I have been vacuuming the pool at least once a day and twice most days.
I do have a pretty blue color, starting to see the bottom in the shallow area, but still am using chlorine overnight.
Latest test is as follows: 33,000 gallon Vinyl w/sand filter
for the last several days the FC and CC have been pretty constant when measured in the a.m.
I took a sample to Leslie's to double check for copper, (before I found the BBB I added a couple quarts of copper algacide )
No metals found.
Using a sand filter w/ a little de to help it filter the fine stuff.
Should I keep the chlorine around 13 or will adding more speed up the process?