It is critical that newly installed sod gets the proper amount water. The number one reason why a sod installation is not successful is lack of water. New sod should be watered every 2 days, ensuring that the soil under the sod gets water. This will encourage proper deep root growth. During the very hot and dry summer months, this watering should be increased to every day, always in the morning. After the sod takes root, after about 2 or 3 weeks, the watering can be reduced to 2 or 3 times a week, providing an inch of water per week. Monitor your new sod closely for the first year until the root system has fully developed.