Our pool was completed in Nov., a month or so later we noticed a light grey patch in the deep end, kinda looked like a shadow. The shadowing has spread thoughtout the whold pool, including on the walls, on the walls it almost looks like it ran down them. There is very little "bright white" left, it all looks like a light grey. You can't really see it when it is sunny, but when it is cloudy it really shows up.
We just did a stain remover treatment and metal out. It has been several hours with no improvement. We were really hoping for an easy fix.
We have a salt water system, PH running between 7.8 and 8, total alk. 100-120. our salt is running 3200ppm.
Please help, it seems that all of the pool supply peaple have NO CLUE...