Hello, I have found this site to be a wonderful place to get some true answers. I have been mainting my pool myself since my builder went out of business last year. I have been lucky I guess, until now. The last few months I had seen a rise in TA with a simple test strip. My SWG panel keeps shutting the cell off due to low salt @ 2200ppm. My FC has fallen to 0.5-1.0 quite often. I get occasional green algea spots in the shady areas of my pool. I bump the SWG to get it to turn on and I brush. The algea easily brushes off and I assume it's gone. I started having Leslie's check my water and they said everything is perfect and all I need is about 20 cases of Phos-free. Well maybe not that much but, you know what I am saying. The phos-free seems to help for awhile but then the algea got worse. I found you guys and ordered my TF-100 kit and I see my numbers are bad. My salt cell was telling me 2200 but, the aqua-chek strip read 2700. I bought 80 lbs of solar salt and the panel reads 2900 and it is staying on. I haven't re-tested with the strip yet. Assuming it is at 3400, my target. I thought I would be ready to start shock process but, looks like I need to do a large drain and re-fill. Wish I would have waited on the salt. The pool calc says drain 41% for high CH and 17% for high CYA. Just so I don't go back and forth getting the water balanced before I shock it, and seeing how you guys predict the effects of the changes that need to be made, can someone give me the steps I should take before I get to the shock routine. I plan on using bleach. I want to add borates, but still a little confused about it. Thanks.
salt 3400 (I think)
CH-510 (Tested twice to be sure)
CYA-110 (A little below the 100 line, so I approximated)
I have been getting a real bad white line on tile and rocks. Cleaned tile with pumice and it comes right back. New stain looks like a fatter grey film than a thin white scale. Been brushing rocks with no success. It is getting a lot worse since adding Phos-free. Not sure if that is why but, I assume the high CH is the problem.