Where is the water inlet of Santana water tank (how to drain Santana 3000 water tank)

Where is the water inlet of Santana water tank (how to drain Santana 3000 water tank)? Santana needs to turn on the hood switch under the cab to add water to the water tank, and the water tank is on the right. When opening the range hood, it is necessary to push in the bolt of the range hood, open the water tank cover and add water to a proper position. Note that the added water must be clean water, then cover the water tank and turn off the range hood. The body dimensions of Santana are 4475mm, 1706mm and 1469mm respectively, and the wheelbase is 2603mm. Santana's driving mode is front drive, the front suspension type is McPherson independent suspension, the rear suspension type is torsion beam dependent suspension, and the body structure is load-bearing body.

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