Ben
I would be happy to give you the exact numbers. First it has been 14 days this morning since I started my pump for the season. I closed in later November when it was in the 40's. I took fc to shock level @ 15ppm, ph @ 7.8, ta @ 100, and cya 50ppm. I let it circulate 1 day and pulled pump. I do not cover pool just winterize and leave uncovered. Living in the deep south this year we had almost no winter with temp at times in the 80's and easily the 60's at night. When I opened 2 weeks ago I had 0 cya, 0 fc, and ph was high at well over 8ppm. I have added to date 72.5 gals of 6% bleach, 9 lbs cya, and 12 pounds of baking soda, oh yea 120 lbs of salt ( I do not have a swg but run about 2000 ppm salt for feel). I just tested about 15 minutes ago and here are the numbers. fc=9, cc=0, ph=7.3, cya=40ppm, ta=120, and salt=2290. It is a 20*40 vinyl inground pool with a sand filter. If my math is right it should be in the 30 to 32000 gal range. This is the third season I have used your method and it is wonderful. My maintenance last year for example was about a 1.5 gals of bleach a day, and that was all. What is your opinion of swg's. I have no problem with adding bleach but if there is something a little more maintenance free I am all about it. I just have not been able to justify $1000 for a swg. Is the money savings and time savings really there? My pool is pretty easy to maintain (once I do my due work for a couple of weeks early in the year). It cost me about 40 gals of bleach a month or about $85 dollars. And time wise less than 2 hrs a week including testing and adding bleach. Any input would be appreciated. Thanks again