Made it through the overnight FC loss test and actually went swimming today - woo!!!
Have been leaving the cover off as well, and I think that along with people in the pool, helped bring the FC down to almost normal levels. We'll do the overnight FC loss test again this evening just to confirm, but I think we are almost there and start getting all of the levels within normal range.
Test results as of 9:00pm tonight
FC: 7
CC: > .5
TC: 7.5ish
pH: 7.5
TA: 90
CYA: less than 20
Few more questions:
1) I added CYA a few nights ago and it still does not seem to be rising. I want to make sure I am reading the test result right - in the test tube the water does get cloudy, but I have always been able to faintly see the black dot. Will it completely disappear or will there always be a trace of it at the bottom of the tube?
2) Should I add more CYA or wait a couple more days to see if it registers?
3) Do I need to lower my TA now down to 80? And at the same time raise my pH a bit since it's on the low end of the range for vinyl with SWG?
I will turn the SWG back on tomorrow after testing to make sure the FC does not drop too much and stays around the 4 - 5ppm range.
Thanks so much again for all of the help! I will get around to posting pictures soon to show how nice and clear the water is