1996 Chevy Corsica heater hose routing

Heater problem
1996 Chevy Corsica 6 cyl Front Wheel Drive Automatic

I want to flush the heater core but the only way I can see the hoses are from under the car. Where are the hoses located at the pump? They are rubber hose from the core but are then connected to metal lines. Any help you can give me would be greatly appreciated as doing this from under the hood would sure beat getting a face full of coolant. Thank you