new to me 80. Rear window washer fluid sprayer not working. There is a pump beneath the washer fluid bin that I guess is what sprays the windshield. Then there is this other sprayer here. The bottom of the sprayer has a tub that looks like it feeds the rear. top and side ports are just looped into each other. From the steering wheel switch when I spray the rear window it actually activates the windshield sprayers. Push button on the end of the stalk and it also sprays the windshield. Something can't be right here. Any one have any experience with this?