Will XL or Snapshot stain pavers? We've got a maintenance client who have a paver driveway installed when the house was built 7-8 years ago. Like many other things in/around the house, the pavers weren't installed correctly and the outer pavers have crept. Which opens up great places for weed seeds to blow in. Which means there's a lot of otherwise needless spraying of weeds on that part of the driveway. Don't know why I hadn't thought about it before, but when we were there the other day I thought about spreading pre-e on the pavers to eliminate some of the spraying... Good idea?