Per my original thread, I have fighting black algae for the past 2 summers. I have done a lot of reading on this site, purchased a recommended kit, and have my 1st test results. I am still looking for a reasonably priced liquid chlorine (so far best I can find is ~ 4.00/gallon) as I am fairly sure I will need to slam.
If someone could guide my assumptions of what I believe are my next steps, I would greatly appreciate it as I am new to the TFP process.
CYA >100 (Does not reach to the 1st line which is 100 - It falls about 1/8" below the 100ppm line, so I will assume a CYA of 110-120).
From the calculator on this site, it appears I need to replace 64% of my pool water, or about 6000 gallons. This should also help my high CH. Since I live in Phoenix, I am concerned about plaster delamination due to the warm temperature, but will remove water in the evening hours.
Retest CYA after replacing water and aim for a goal of 40-50ppm.
Retest all parameters with the assumption of starting a SLAM?
Continue brushing black algae 2x per day with SS brush.
Does this sound correct? Any tips on locating inexpensive liquid chlorine or bleech for a SLAM would be greatly appreciated!