Ask the Carpenter: How to clean stains off your bluestone patio - Boston.com

Ask the Carpenter: How to clean stains off your bluestone patio
Boston.com
Q. Last year we had a landscaper do our backyard and install a bluestone patio. It's now being attacked by plums that fall, splatter, stick, and stain. I knew we would have to deal with plums every year but never realized it was going to be this many ...