Staining during Slam

[whiskeykahlua]

I posted previously had small algae bloom. Got sick. Now we are supershocking and the pool has black stains and brown stains. They don't go away brushing. What do you recommend? Keep the slam going or give up? Photo is not algae it's a stain.
We are at
TC 20
ALK 100
CYA 40
Ph 8

 

[ajw22]

Complete the SLAM and then deal with the stains.

One problem at a time.

It is probably metals.

 

[Bperry]

I posted previously had small algae bloom. Got sick. Now we are supershocking and the pool has black stains and brown stains. They don't go away brushing. What do you recommend? Keep the slam going or give up? Photo is not algae it's a stain.
We are at
TC 20
ALK 100
CYA 40
Ph 8

You will need a test kit that can read FC and CC separately to perform a SLAM. Get that first and then start the SLAM.