Can anyone tell me what this is?

DanWC

Active member
Aug 17, 2023
44
Kentucky
Pool Size
17890
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-20
Hi all,

New pool owner. Pool was built late last year so we did not get to use it. This is my first year of pool ownership.

This is something I noticed last year. These copper-ish colored spots on pool surface. I never got rid of them last year nor really tired as I could not find out what they were. I can scrape them off with my finger, although not that easy. So using a brush is not an option.

My pool water has been pretty well balanced and has never gotten out of wack.

Pool water is perfectly clear and CC drop test will fluctuate between 0-0.5.

Can anyone help me identify what this may be?
 

Attachments

  • IMG_4992.jpeg
    IMG_4992.jpeg
    658.2 KB · Views: 29
  • IMG_4991.jpeg
    IMG_4991.jpeg
    494.6 KB · Views: 29
  • IMG_4990.jpeg
    IMG_4990.jpeg
    511.3 KB · Views: 29
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.