White haze on new Arizona Buff Flagstone Patio
Our landscaper just installed an addition onto our patio. We used AZ Buff Flagstone set in concrete. Even though he has acid washed and power washed the new area, a white haze still exists. Do you know what causes this? What can we do to fix it. It would not be a problem except the addition now looks very different from the older part of teh patio.