Rule of Thumb: water deeply but not too often. In general,
watering should moisten the soil to a depth of 4 to 6 inches. This
requires an application of a half inch of water on coarse, sandy
soil and 1 inch on heavy - or fine - textured soil. Too
much water can cause water quality and grass problems,
increasing the chance of fungus, or runoff and leaching of
nutrients. And, it's a waste of our precious water resources.