Hello I have a 2001 ford focus and lately the water in the resavor is going down half way when I have only driven maybe 14 miles round trip (to work) the heater is working ok and the tempature gauge is in the middle and does not indicate overheating and I see no leaks anywhere.Seems like the water only dissapears after I drive it.Can anyone give me an idea before I have to take it to a shop?Thanks.....