Where is the water pipe of the small water tank of Toyota overbearing 2700 10 rear heater?

In the engine compartment near the firewall. Toyota overbearing 2700, 10 rear heater small water tank water pipe is in the engine compartment near the firewall. Toyota 20 10 Overbearing 2700 inherits the excellent quality of Toyota's overbearing in previous dynasties, and shows Toyota's unique quality in both urban driving comfort and off-road driving.