SLAM for Mustard Algae, is This Even Algae?

Coolcat

Member
Jun 1, 2021
7
Ottawa
I've had recurring mustard algae that reappears along seams and wrinkles in the liners after brushing. Plus had bugs.
Started slamming 3 days ago. After 24 hrs FC maintained and CC was 0 so I moved up to Slam for Mustard Algae. Trying now to keep FC at about 20 (cya 30). Yesterday afternoon it maintained for 3 hrs at 20 but dropped to 15 this morning. Is that a normal drift down over 12 hrs or do I need to keep maintaining?
I've also attached what I have this morning of the small spot on the liner. It disappears when brushed. It's an above ground round pool with 1 return. I've taken the stairs out so there really shouldn't be corners or dead zone for anything to hide in.

Readings:
3 days ago pm:
FC 3.8, CC 0, pH 7.2, TA 100, ch 350, cYa 30
3 days ago evening:
FC 11, CC 0
2 days ago AM:
FC 7, CC 0
2 days ago PM:
FC 12, CC0
2 days ago evening (raise to mustard algae 18-20FC):
FC 17.5, CC 0.5
Yesterday AM:
FC 14.5 CC 0.5
Yesterday noon:
FC 21, CC 0.2
Yesterday 5pm:
FC 18, CC 0
Yesterday 8pm:
FC 21, CC 0
Today 8am:
FC 15, CC 0
 
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