The upper and lower hoses both attach at the water pump on the V-8.
Consider the 4 or 5 hoses at the driver's rear of the engine for the reservoir and heater control solenoids, auxilliary water pump too.
If you have an automatic transmission, some models have two rear hoses that go down on either side of the back of the engine to a transmission heat exchanger block.
Dave B.
1994 540iA 180,000 miles on original Nikasil block.