Q: We recently had our deck redone with Trex boards. They apparently are thinner than our original boards, so now we have a trail of old stain marks on our siding. What is the best way to remove ...

the deck should be washed with a deck cleaner to remove ingrained grime. "Sanding will get you into the next layer of grain for better stain penetration," he adds, noting that while sanding isn't ...