I hope I don't wear out my welcome with all of my questions. Quite truthfully, if it weren't for this board I would never have been able to get my pool to where it is now.
My friend, that I am helping with her pool algae, recently had her pool drained and acid washed. New water was added a few weeks ago. 2 weeks after the addition of the fresh water large rust colored stains appeared on her steps. She has never had this before and has no idea of how to treat it. Pool is 15,000 gallon, inground plaster.
Thank you again,