Anonymous wrote:I've had my cleaning lady for almost a year. She recently became injured and brought several friends to help clean while she supervised. My baby and I migrated around the house, trying to stay out of their way while they cleaned. We were in the basement playroom and I kept hearing the back deck door open and close. When they left, I discovered the back deck was wet with cleaning solutions. I'm pretty sure one of the women was dumping the cleaning solution on the back deck. (I heard the door opening, a big splash, and then closing. This happened several times.) The liquid looked a little discolored but I figured it was no big deal. Now, a few days later, the deck is completely discolored in a splash-like area. The marks are light blue and almost white on a dark deck. I think it's a bleach mixture but I'm not sure what they were doing. Is there a way to try to clean it off? It looks awful. Thanks.