I know the pictures are really hard to see, but i started noticing these mustard/yellow patches popping up around the pool. If you brush them or take a towel to them, they dissappear for a few days but come back in the same spot. I was away for about 5 days on vacation so my chlorine had dropped down. I usually have at 1-2, with ph 7.8, alk 90, calcium 400, cya 60. I read the article on stains, but are these stains or algae? What can I do to test and remediate to get rid of it? Any and all tips are so welcome, thank you!!!!
Stain or mustard/yellow algae?
- Thread starter fvanskike
- Start date
With CYA of 60 your FC should be 7-9 min of 5 so that would definitely invite algae per the CYA chart
I had yallow algae it was very easy to brush and looked like it made a smokish effect when brushing it. It came back all the time usually in days.
So they would recommend a SLAM here to eradicate it and then a mustard SLAM to make sure it's gone, along with inspecting and treating all areas in the pool it might hide (equipment, lights, skimmer, ladder, etc)
I had yallow algae it was very easy to brush and looked like it made a smokish effect when brushing it. It came back all the time usually in days.
So they would recommend a SLAM here to eradicate it and then a mustard SLAM to make sure it's gone, along with inspecting and treating all areas in the pool it might hide (equipment, lights, skimmer, ladder, etc)