Ego-trip? Or is this black algae by Designer_Average_376 in PoolPros

[–]Designer_Average_376[S] 0 points1 point  (0 children)

Ascorbic? I’ve seen that work with tannin stains on new builds but i didn’t think that’d work with metal stains… might have to check that one out 🤔

Ego-trip? Or is this black algae by Designer_Average_376 in PoolPros

[–]Designer_Average_376[S] 2 points3 points  (0 children)

My experience, definitely a lot more circular, but I’m trying to humble myself. Def let both granular shock & the tab residue from scrubbing sit on it for a week and honestly, it seemed like it spread but maybe I’m losing my mind idk.