At the end of last this year , the KSB Group shipped five large submersible borehole pumps for the purpose of dewatering and maintaining the water in New Yorks famous Delaware Aqueduct while repairs are being done .. This sentence is hard to understand. A simpler version with equivalent meaning is the following:
At the end of last year , the KSB Group delivered five large submersible motor pumps . These will drain the famous New York Delaware Aqueduct and drain it so that the tunnel can be rehabilitated .