Late this past fall I lost control of my pool and algae (dark green) took over. I let it go thinking over the winter the algae would die off. No such luck. Up to that point I have always used chlorine tabs in a autofeeder (different kinds/makes - never knew the difference) and run filter 24/7.
Since then I discovered this sight, ordered a TST test kit, and read about the SLAM process.
About a month ago, I tested and came up with the following levels:
PH: 7.2
FC: 26
CC: 0
TA: 160
CYA: 120+ (tested a number of times and lost sight of the black dot well below the 100 mark)
I then added baking soda and raised the PH to 8-8.2 thinking FC would start doing it's thing. Waited a few days, no change, tested again and all other levels were about the same. Going with the SLAM advice, I drained about half the pool (later when I got water bill I realized about 3K short of half.) I refilled, let it circulate for another day and tested again. No visable change in CYA..still lose sight of black dot well short of 100 - looked unchanged.
I tested again this morning and here are current results:
PH: 8-8.2
FC: 10-10.5
CC: 0
TA: 160
CYA: 120+ (same as described previously - not exactly sure how high it is)
I'm following posted directions here regarding testing, so I think it's fairly accurate. Hopefully I've shared enough to be helpful. Where do I go from here?
Since then I discovered this sight, ordered a TST test kit, and read about the SLAM process.
About a month ago, I tested and came up with the following levels:
PH: 7.2
FC: 26
CC: 0
TA: 160
CYA: 120+ (tested a number of times and lost sight of the black dot well below the 100 mark)
I then added baking soda and raised the PH to 8-8.2 thinking FC would start doing it's thing. Waited a few days, no change, tested again and all other levels were about the same. Going with the SLAM advice, I drained about half the pool (later when I got water bill I realized about 3K short of half.) I refilled, let it circulate for another day and tested again. No visable change in CYA..still lose sight of black dot well short of 100 - looked unchanged.
I tested again this morning and here are current results:
PH: 8-8.2
FC: 10-10.5
CC: 0
TA: 160
CYA: 120+ (same as described previously - not exactly sure how high it is)
I'm following posted directions here regarding testing, so I think it's fairly accurate. Hopefully I've shared enough to be helpful. Where do I go from here?