Inquiry (采购产品): proper installation I would like to install two 24"x 20' plastic drain pipes. Could you fax me some installation instructions? compaction, distance apart and pitch. 413 528 4234 attention Jeff. Thank you. **** Hidden Message ***** Jeffrey Harvey 162 East St. Mt. Washington, MA 01258 USA Company: YMCA Camp Hi-Rock Title: Facility Manager Phone: 4165281227 ext. 15 Fax: 4135284234 E-mail: maintenance@camphirock.com **** Hidden Message ***** maintenance@camphirock.com