Mustard Algae shock


Jul 27, 2018
Ok, so I've completed my SLAM as of this morning. Passed all the parameters including overnight test. Now I'm attempting to get the shock level up to the mustard algae level of 35. I've added bottles and bottles of bleach per the PoolMath Calculator on this forum and it's getting no where near 35. I test 2-3 hrs after bleach addition and it's the same or lower than the prior reading. My CYA is 60 and I can't seem to get my FC abover 27-28. Will this still work? Thanks!

Most recent numbers:
FC = 28
CC = 0
PH = 7.6
TA = 120
Calcium = 150
CYA = 60


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
It will be a fight with the summer sun shining on the pool.

Check the date on the bleach. It is a Julian date, 18XXX