I have discoloration on the surface of the pool and has been there for over a year.. Can anybody help me identify what the problem that I should be fixing is? Pictures below. It feels like it's part of the concrete.. Any help is greatly appreciated!
FC - 3
CC - 0
pH - 7.8
TA - 70
CH - ??
CYA - Test Strip says 30-50 (after replacing half of the water)
Overview:
Closeup:
FC - 3
CC - 0
pH - 7.8
TA - 70
CH - ??
CYA - Test Strip says 30-50 (after replacing half of the water)
Overview:
Closeup: