After opening the pool, organic debris had fallen into the pool (our cover was not on correctly), and I believe organic compound had spread. It was in there for approximately 6 months. However, after shocking the pool and taking the FC up to 35 for about a day (I have a CYA of 90), I saw little to no improvement.
I am going to do a Vitamin C test tomorrow but I do not believe it is a metal stain. It is the first time it has happened this us and we test the well water every year. Please tell me if it looks different to you.
If it is a long-running stain from organic matter for ~6 months, is there a way to remove it with chlorine or am I going to have to repaint / do an acid wash of the pool?
I am going to do a Vitamin C test tomorrow but I do not believe it is a metal stain. It is the first time it has happened this us and we test the well water every year. Please tell me if it looks different to you.
If it is a long-running stain from organic matter for ~6 months, is there a way to remove it with chlorine or am I going to have to repaint / do an acid wash of the pool?