[cabmandone]

So I'm bored and waiting on some parts before my engine goes back in... I decide to look into the windshield washer system because it hasn't worked since I put the car back on the road a few years back. I know.. me and my silly "easy button".. but seriously, one check valve at each nozzle? Why not just one right at the pump? It would serve the same purpose and prevent flow back to the tank. I know some have done away with the check valves entirely but that makes the pump draw longer to get the water flowing. I figure one at the pump holds pressure on the upstream side and prevents siphon back to the washer tank.

What am I missing here?