retroman99
Well-known member
seems like a simple device but cant seem to figure it out. the pump wants to suck and pump in both directions. it would appear that there needs to be a check valve in line or something. i did notice what looks like some type of check ball in the white plastic fitting that screws into the black pump ball. this was in the line going to the wndshield. i tried to clean it out with water and a little air but didnt try to extract it until i got a little smarter. i would think there should be check valves on both lines. what am i missing?