Black algae spots forming - Need Help!

Nov 7, 2015
19
Cape Coral, FL
I tried the HTH Super Algae Guard which didn't work.

I have a Salt water plaster pool about 15,000 gallons. I've had a week here or there where I've had issues with my salt generator and when I do my weekly testing I have like no chlorine and have had to add a gallon here or there.

Currently I think the Salt cell is working.

Here are some test results

Total Chlorine 3

PH 7.8

Cya 45 - 50

TA - 60

CH 750

FC 4ppm

CC 0
 

Attachments

  • A3DE46FE-5B9A-4D6E-897F-B2D2137F0456.png
    A3DE46FE-5B9A-4D6E-897F-B2D2137F0456.png
    364.2 KB · Views: 7
Last edited:
Why do you think that it's algae?

Do you have a picture?
Its dark now so I don't have a picture.... It looks like small Black spots. They feel like mold to the touch. If I rub it with my pool grout eraser bar it comes off but it's hard. I think it looks a little green when I'm rubbing it off

I do have a full metal Algae scrub brush and it doesn't come off with that
 
Last edited:

Enjoying this content?

Support TFP with a donation.

Give Support
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.