Perforated concrete perimeter walls for a 42-story office tower were built using climbing wall forms. With only two tower cranes there wasn't enough crane time for bucket placement. The concrete had to be pumped. The solution was to modify a standard double-swivel placer normally used for floors by mounting it on a portable steel placement tower. The welded braced tower was 16 feet 3 inches tall, and the pumpline rose vertically in the center. The entire tower and placer could be lifted by crane and moved from one site to the next in about 12 minutes. The double-swivel design of the placer permitted concrete to be discharged into the form exactly where it was needed.