If you find yourself stuck in a car with water filling up the door, there are a few things you can do to try and drain it. The first thing to do is to open all of the windows as wide as possible. This will allow air into the car and help the water evaporate. If you have a tow truck nearby, try to get them to pull your car over so they can use their tow truck to drain the water. If this isn’t possible, you can try using a bucket or even a large pot and pouring it all out of the door. ..