How deep does the water need to penetrate?
Apply enough water to wet the soil to a depth of approximately six to eight inches. A soil probe may be used to check moisture depth in soil. Maintaining a soil moisture depth of six to eight inches usually requires a rate of one to two inches of water per week. You can place opened cans in the sprinkler pattern to determine the amount of water being applied. ยท Don’t give your lawn a light sprinkling. This promotes shallow roots, and it may not even reach the soil, depending on how much you water.