Took off the solar cover today to discover brownish stuff on the bottom of the pool that wasnt there yesterday. It brushes off easily and the water is clear. Do you think it is algae? I am going to do an overnight fc test tonight. I havent turned on my swg since 6/30 cause my fc tends to run high(running it for 2-4 hrs will make my fc 9-10). The only reason why I suspect algae is because I had an incident on 6/26 when the fc dropped to 0 after a day of sunlight and a few days worth of rainwater debris accidentally dumped in.
Below is the running log of my tf100 kit results copied from my other thread:
why-is-my-free-chlorine-so-high-and-other-tf100-questions-t14455.html
tf100 kit results(7/6)
fc: 4
cc: 0
tc:4
ph: 7-7.2
ta: 110
cya: 20?(added 24oz of cyanuric acid on 6/27)
temp: 81 degrees
6/25 11a tf100 kit results
fc: 10
cc:0
tc:10
ph: 7.2-7.5
ta: 120
temp: 68 degrees
tf100 kit results(6/26 9a)
fc: 0!!!
cc: 0
tc:0
ph: 7
ta: 110
temp 70 degrees
tf100 kit results(6/26 4p)
fc: 2.5
cc: 0
tc:2.5
ph: 7.2
ta: 110
temp: 68 degrees
tf100 kit results(6/27 11a)
fc: 8
cc: 0
tc:8
ph: 7.5
ta: 110
temp 74 degrees
tf100 kit results(6/30)
fc: 9
cc: 0
tc:9
ph: 7.2
ta: 110
temp: 77 degrees
tf100 kit results(7/1)
fc: 7
cc: 0
tc:7
ph: 7.2
ta: 110
temp: 77 degrees
tf100 kit results(7/2)
fc: 6.5
cc: 0
tc:6.5
ph: 7.2
ta: 110
temp: 77 degrees
tf100 kit results(7/3)
fc: 6
cc: 0
tc:6
ph: 7.2
ta: 110
temp: 76 degrees
Finally vacuumed the floor of the rainwater debris.
tf100 kit results(7/4)
fc: 5.5
cc: 0
tc:5.5
ph: 7.2
ta: 110
temp: 76 degrees
tf100 kit results(7/5)
fc: 5
cc: 0
tc:5
ph: 7.2
ta: 110
temp: 79 degrees
Below is the running log of my tf100 kit results copied from my other thread:
why-is-my-free-chlorine-so-high-and-other-tf100-questions-t14455.html
tf100 kit results(7/6)
fc: 4
cc: 0
tc:4
ph: 7-7.2
ta: 110
cya: 20?(added 24oz of cyanuric acid on 6/27)
temp: 81 degrees
6/25 11a tf100 kit results
fc: 10
cc:0
tc:10
ph: 7.2-7.5
ta: 120
temp: 68 degrees
tf100 kit results(6/26 9a)
fc: 0!!!
cc: 0
tc:0
ph: 7
ta: 110
temp 70 degrees
tf100 kit results(6/26 4p)
fc: 2.5
cc: 0
tc:2.5
ph: 7.2
ta: 110
temp: 68 degrees
tf100 kit results(6/27 11a)
fc: 8
cc: 0
tc:8
ph: 7.5
ta: 110
temp 74 degrees
tf100 kit results(6/30)
fc: 9
cc: 0
tc:9
ph: 7.2
ta: 110
temp: 77 degrees
tf100 kit results(7/1)
fc: 7
cc: 0
tc:7
ph: 7.2
ta: 110
temp: 77 degrees
tf100 kit results(7/2)
fc: 6.5
cc: 0
tc:6.5
ph: 7.2
ta: 110
temp: 77 degrees
tf100 kit results(7/3)
fc: 6
cc: 0
tc:6
ph: 7.2
ta: 110
temp: 76 degrees
Finally vacuumed the floor of the rainwater debris.
tf100 kit results(7/4)
fc: 5.5
cc: 0
tc:5.5
ph: 7.2
ta: 110
temp: 76 degrees
tf100 kit results(7/5)
fc: 5
cc: 0
tc:5
ph: 7.2
ta: 110
temp: 79 degrees