The key to establishing new sod is to keep it properly watered for the first month. Immediately after installing sod, water thoroughly, until runoff. Depending on the terrain of your yard, and your soil type, you may have to water numerous times. The new sod should be kept thoroughly wet and not allowed to fully dry out. Depending on the time of year, temperature, and wind, the sod may need to be watered 3 to 5 times a day during the first 7 to 14 days. We have found that during the heat of the summer, 3 waterings will usually be enough provided the sprinklers are left on enough to soak through the soil of the sod and into the soil of the property. Lift a corner of the sod to ensure the water is getting through the turfs soil. In the first week, it is very important to keep the new sod damp. During this time, if your soil is soft, do not walk on it to keep from sinking in and leaving foot tracks. If allowed to dry out, the sod will shrink, brown, and can die. The roots of your new sod will penetrate the soil faster and root down sooner if properly watered. At the end of week 2, dry up the yard enough so you can mow.