Rear wiper washer fluid on 2003 Chevrolet Trailblazer

where do I put the washer fluid in for the rear wiper?

Asked by for the 2003 Chevrolet Trailblazer
It's the same reservoir as the front washer fluid, but there's (2) pumps on it, and one of them has a 20' tube that goes to the rear, The rear pump is mounted higher in the tank so it will run out first.
Once the reservoir is full and its still not working check for a kink in the hose at the rear wiper area