So, now that I am on board with BBB here is the data...
We aquired this pool when we bought our house in December. The pool is 11 years old. Here is some information that you all may find useful...
15,000 gallon pool
Sta Rite System 3 DE filter
Previously used inline trichlor puck feeder (now turned off) & dichlor to shock
1st results with the TF100 kit on Monday
CYA over 100
CYA over 100
I have been testing the FC and pH daily and everything else every 2 days. I have been adding bleach nightly to raise our FC to 7 or 8 and adding muratic acid (2x) to lower our pH to 7.2 to lower the TA. I have been running fountains and trying to create bubbles to raise my pH while trying to lower my TA. We also drained about 1/3 of the pool this weekend when we cleaned the filter so I am hopeful that with another large drain we will be able to get our CYA to a better level.
When we were cleaning the filter we noticed tears on the grids. Thankfully we have a home warranty that will cover the replacement of the grids. The bad news is that they came out today to look at the grids and took them with them! The pool repairman claimed that they couldn't get an exact match on the size of the grids without having them. So we are without a filter for about a week. Is this really bad? He moved the multiport valve to recirculate so we are moving water, but not through a filter. I am scared of what this will lead to. He claimed that if we maintain our chlorine levels and pH levels that we will be fine. He also told me that I need to completely drain and refill the pool every 3 years, so I'm not confident in his advice. I tried to not let them take the grid and just order the part based on the model/serial number, but they wouldn't budge. I even called the home warranty company and they were no help. I felt like I was stuck.
My goal is to lower my CYA to around 70, and I know that I need to lower my TA but what would be ideal?
So what do you think?? Many thanks to all of you for your help and advice!