Hold a second offset bend at a position a little off the wall to line up with the downpipe which will be held on brackets.

Joggle bending, a type of offset bend in construction.

The offset bend helps hooking at a distance.

With some systems, you prefabricate the offset bend, solvent-welding the short length of pipe and elbows together.

The CTA Pink Line, having descended from an elevated position over Keeler Avenue to street level at Kildare Avenue, then makes a pair of southward offset bends between Kostner and Kilbourn Avenues, placing the tracks only a half block north of Cermak.