my pool is plaster over gunite.
located in san diego, ca
I emptied my pool because the local pool store said the water had snapped.
i cleaned the tile with CLR, it did a great job on the calcium deposits.
but....i have an issue with my pool walls???
they are mint green to green to brownish ?? What is that and how do i get rid of it?
I have tried scrubbing with CLR, BLEACH AND MA Mixture?