To ensure a the very best and efficient method to properly water your lawn. First of all soak your lawn in order to the depth of the principle zone no further. Each time you water you should moisten the soil to a depth of 6-8 wearing. when watering bluegrass and 8-11 in. on other grasses. This will ensure that you wter in order to the grass's active root zone. The amount of time and quantity of water it needs to moisten the root zone rely on soil type and the irrigation system. Sandy soils will be penetrated more quickly and more intense than clay and other softer soils.