Rear window washer leaking

I filled my windshield washer to the max, under the hood, the front is working okay, sprays good, when I press the rear button for the back, the wiper moves back and forth, but no washer fluid comes out. But I hear the motor doing its job, and when I looked in the rear left tailgate underneath I see a puddle of washer fluid on the ground. I see two bend hoses, but I can locate which hose is really leaking. I'm lost on this issue. Both hoses are hard as a rock, looked okay. My son says it's the hoses, but i'm lost. If you have any kind of diagram for this, it would be a great help. I looked all over the net, nothing. Thanks for any help. With all the snow we been having, back window is a mess and a pain to clean and the road salt is like taking course sand paper off.