The initial watering is the most crucial. Sod must be watered immediately after laying. Lay sod sections in such a way that each section can be trimmed and rolled, and not be travelled over again. You should start to water each section as you continue on to the next. One gallon of water in the first hour of laying is better than six gallons another hour later. Generally, a sprinkler set in one location (normal water pressure) for one hour is enough to ensure that the water has soaked through the sod completely. The soil underneath should be uniformly wet. Depending on weather conditions sod should be watered (soaked) daily until rooted. Rooting of the sod will occur within 5-10 days. When sod cannot be easily lifted up it should be rooted. At this point, regular watering can be maintained as with any established lawn.
Sod should be mowed after it is rooted. As sod grows very rapidly in the first week, it may be 4” high before it can be cut. Remove ¼ ½” on the first cut and continue to lower mower each day after until you reach 1.5-2” blade height. Do not allow wet clippings to be left on lawn as they may smother growth. If required, rake lightly but do not lift the sod. Weeds should not be a problem with sod unless some have grown up in the seams. A good, healthy thick lawn is the best prevention against weeds.