The background:
I began running the pump 4 hours a day about 3 weeks ago and adding liquid chlorine to it around the same time, at this point the pool temp was around 50 and the SWG wouldn't make FC. Initially the CYA reading was between 30 and 40, PH was 7.4 and FC 0 and CC were 0 using the taylor test kit. I initially added enough liquid chlorine to raise the level to a 16 and tested it an hour later and it had dropped so I added more and within a few hours the chlorine level was no longer dropping. The pool cover has been in place for the past 3 weeks and the FC level has remained near 16 with the SWG set at 10%, not using much if any chlorine.
Yesterday night I removed the cover and found the pool to be fairly clear with some green algae on the bottom over roughly 20% of the pool. I vacuumed this to waste as we had 6" of rain here in the past week and I had water to remove anyhow. I brushed down the walls and overall was happy that it wasn't a complete green swamp like last year.
Last night the test results were:
FC 16
CC 0
CYA between 30 and 40
TA 80
CH 20
PH showed 7.4 but the FC is above 10 which I read will skew the test.
Salt 2600 according to the SWG controller
Pool temp 65
I tested it a couple times last night and the FC remained in the 16-18 range with the SWG at 10%
This morning the test results were FC 18 and CC 0. I didn't test anything else because they don't change as rapidly. The water was a little cloudy at that time but I could see the bottom of the 9' deep end.
Tonight I return home from work to a green pool and I can't see the bottom of the 4' shallow end, FC at 16 and CC at 0. The pool gets about 8 hours of sunlight per day and the pool temp was up to 72 from 65 the night before when I tested it. What could be going wrong here? How can a seemingly clear pool have an outbreak of algae when the FC is at SLAM level? Also I would think that I should have some CC reading given the amount of algae in the pool. All of my reagents are new this year except the R-0003 but the expatriation date on it is 2018 so I assume it is still ok and all stored indoors around 70 degrees.
What else could I be missing?
I began running the pump 4 hours a day about 3 weeks ago and adding liquid chlorine to it around the same time, at this point the pool temp was around 50 and the SWG wouldn't make FC. Initially the CYA reading was between 30 and 40, PH was 7.4 and FC 0 and CC were 0 using the taylor test kit. I initially added enough liquid chlorine to raise the level to a 16 and tested it an hour later and it had dropped so I added more and within a few hours the chlorine level was no longer dropping. The pool cover has been in place for the past 3 weeks and the FC level has remained near 16 with the SWG set at 10%, not using much if any chlorine.
Yesterday night I removed the cover and found the pool to be fairly clear with some green algae on the bottom over roughly 20% of the pool. I vacuumed this to waste as we had 6" of rain here in the past week and I had water to remove anyhow. I brushed down the walls and overall was happy that it wasn't a complete green swamp like last year.
Last night the test results were:
FC 16
CC 0
CYA between 30 and 40
TA 80
CH 20
PH showed 7.4 but the FC is above 10 which I read will skew the test.
Salt 2600 according to the SWG controller
Pool temp 65
I tested it a couple times last night and the FC remained in the 16-18 range with the SWG at 10%
This morning the test results were FC 18 and CC 0. I didn't test anything else because they don't change as rapidly. The water was a little cloudy at that time but I could see the bottom of the 9' deep end.
Tonight I return home from work to a green pool and I can't see the bottom of the 4' shallow end, FC at 16 and CC at 0. The pool gets about 8 hours of sunlight per day and the pool temp was up to 72 from 65 the night before when I tested it. What could be going wrong here? How can a seemingly clear pool have an outbreak of algae when the FC is at SLAM level? Also I would think that I should have some CC reading given the amount of algae in the pool. All of my reagents are new this year except the R-0003 but the expatriation date on it is 2018 so I assume it is still ok and all stored indoors around 70 degrees.
What else could I be missing?
