We have had our pool open since April 2012 (built October 2011). We had one episode of cloudy water, shocked it, got the problem fixed. Or, at least with our test strips, checking water at two different pool locations in town, etc. Then as the weather started to cool off and we turned the heater on, kept the cover closed more, we seemed to start having problems. Really the biggest thing we had to do this summer was add muratic acid (spelling?) to decrease the pH, regularly add Phos Free (maintenance doses). Then even though it was not cloudy, I did a titration test for FC/TC/CC and felt like we had a problem. I took pool water to be checked and was told we had CC and we shocked the pool. Then we have tested the pool water at the pool shop (2 different ones) several times, have added alkalinity increaser, calcium, etc. I just didn't like what they were telling me, so I found your website, ordered TF-100 which arrived today. Testing complete and I need help....
FC = 35
CC = 0
TC = 35
T/A = 130
CH = 130
CYA = 60
Salt = 4000
pH = 7.8
FC = 35
CC = 0
TC = 35
T/A = 130
CH = 130
CYA = 60
Salt = 4000
pH = 7.8