Last year, in order to eliminate some discoloration on the walls of my pool, somebody recommended Sparkle Conquest. I used it, and quite frankly the results were spectacular.
More than a year later, I have the same discoloration in my walls. However, I have only recently learned what I was doing re: pool chemistry, and my water is now perfect (thanks to Pool School and the great mentors on this web site).
I don't want to potentially ruin the progress I have made by re-introducing this product back into my pool, but I don't know enough to say whether it does any harm. I only know that it exceeded my expectations the last time I used it, for the problem I was having.
Any advice would be appreciated.