So I was putting shock in the pool and I did as recommended, sweeping away the shock as it settled to the bottom. I don't have a skimmer, unless the leaf catcher in the pump is considered a skimmer -- I just don't know. Anyway, I put the shock directly into the pool and swept away as recommended. Now I have lighter areas on the liner that are clearly where some of the product settled. I am really upset about this. Is there any way to fix a discolored area?