I have done a pretty good job with my pool for 3 seasons, this season I ran into some trouble.
My pool is in the sun all day (10AM to 5PM). I keep the solar cover on when we are not in it.
I have been having trouble maintaining FC in the water. Most days it was reading 0, even with my SWG running. I brought my water in for eval at the local pool store. They recommended running the pool for longer, upping the clorine %, and adding CYA (I guess I was at 0!). So I brought my CYA to 30ppm (4# stabilizer), set the SWG to 85% (from 60%), and ran the pump for 10 hours. I would get FC in the pool, but it wouldn't stick around.
Thinking I may have something wrong with the SWG cell, I got out the manual to look for diagnostics. I had a scaling issue earlier in the season, so gave the cell and acid bath (it had some scaling), put the SWG in "boost" mode, and tested the water near the pool return. The FC levels were higher than the rest of the pool, so the SWG cell is making clorine. I called Jandy for help, and they suggested I up my CYA amount to 75ppm, so I added 6# of CYA (now I am reading 90ppm!).
I did an overnight FC check (not with the suggested kit however) and lost about 1.8ppm FC
I want to shock the pool, but I am really concerned about the suggested 30ppm. My 9yo is an avid swimmer (wants to be like Phelps), I have a family party in a week, and it's hotter than **** here in N. CA.
-Can I shock the pool at a lower level, keep it there for longer, and achieve the same result?
-What is a considered "safe" FC level, both for swimming, and the condition of my equipment?
-If I bring the pool to 30ppm after dark (say 8PM), how long until the FC level drops to said "safe" levels?
Thanks for the help everyone... this site ROCKS! I think I am going to put a sticker on Leslie's door!