Red Streaks From Sand Added To Concrete?

[webfeet]

No, I actually started another thread, but I must have deleted it. BTW, I noticed that whatever PB used to clean the outside edge of the fiberglass steps dripped on to the deck. The red stains that were in these small areas were removed by the cleaner or acid that the PB used. I didn't get a chance to ask him what he used. However, I will this afternoon. I think it may have been muratic acid. However, he claims that muratic acid will ruin the deck, if he acid washes it. I think whatever he used to clean the steps, would probably remove the rest of the red stains on the deck. Does anyone else think that an acid wash would work? How do I do one?