My Suzuki Grand Vitara empties the washer bottle when it is parked on a slope nose up. It drains through the rear washer jet. There is a connector in the washer pipe inside the rear door, and I wondered if it is supposed to have a non return valve in it. I blew the line clear to get some crap out and think I may have damaged it.
The thing I can't get my head around is that an nrv would stop water flowing back to the tank, but should let the water flow to the washers. The water should therefore not be dribbling out of the rear jet as this is the way the water flows anyway
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Any ideas?
