We are in escrow to buy a home with an in ground play pool. We noticed that there are black spots and small patches of black algae sprinkled on the bottom and sides of the pool. The pool has a DE filter and also has some gizmo called an oxygen generator that appears to be in line with the filter. Can black algae be successfully treated or should I consider backing out of the purchase of an otherwise perfect home? If treatable, how do we go about the process?
Thanks for any assistance out there.