I'm new to pooling and last year (when we moved in) I used the pucks and shock that the pool told us too. It didn't work well. This year I found the forum, bought a tf-100 and discovered my CYA is 180. I emptied 2/3 of the pool and now CYA is 80. Still high but I'll get it down over time.
We opened the pool a couple of weeks ago but I cannot get the FC up at all. At first I added 3 jugs to get up to the minimum 9ppm per the CYA/Cl chart. I didn't test it right after I added it but the next day's test showed 1-2 ppm (OTO and FAS/DPD). Another 4 jugs go in and the same thing.
Today I added 11 jugs of Clorox 8.5% from Costco then tested after 1.5 hours and my FC is still 1.5ppm! This is driving me up a wall and into the poorhouse. What's going on here?