Questions Filter Sort by: Most Votes Newest FirstOldest FirstRandomRecently ActiveMost AnswersMost Viewed Ask Question Featured/Unfeatured Show featured only Resolved/Unresolved Show resolved only Open/Closed Show open questions only 0 votes 2 answers 2k views Second standpipe Laundry-to-landscape systems standpipe hello, i was wondering why the second standpipe system in your book uses the 1 1/2” branched drai... Loretta Francia asked 3 years agolast active 3 years ago Showing 1 result