Delgreco Supply Co. Inc. will be holding Paving Brick and Retaining Wall seminars Saturday May 2. From 9-10:30 a.m., learn to install pavers for your walkway, patio, and driveway or around your swimming pool, and then stay for the seminar on the installation of retaining walls from 11 a.m. to 12:30 p.m. The seminars are free and refreshments will be served. Delgreco is located at 50 Southwest Cutoff in Northborough and can be visited online at www. delgrecosupply.com. Look for their ad in this issue.