A new lawn should be watered every day, 3-5 times a day. To maintain consistent moisture, water between5-7am, 11am-1pm, 4-6pm and again at 9-10pm. Water 5 to 10 minutes each watering cycle for pop up sprinklers, and 10-30 minutes for rotor type sprinklers. The lawn should be kept damp. Try to avoid puddling on the lawn, however, too much water is better than not enough as it will not germinate without consistent moisture. A good weather/watering guide is 3 times for highs in the upper 60s, 4 times per day when highs are in the upper 70s and low 80s, and 5 times if possible when highs are over 88 degrees. Keep the hydromulch lightly damp without forming pools. Watering length should be long enough until the water just starts to puddle. That means your soil is at maximum saturation. The better and less compact your soil is, the longer it will stay moist. Harder more compact soils will require more watering times and less watering length. It will take longer the first time you water a dry soiled lawn, so wait till the dirt has been totally saturated before measuring the length of time to set your sprinklers at. Rhyzomic grass is used in the seeding process, which will help spots fill in if they are formed after a period of time as a last resort to fill in spots from possible puddling. Be patient. The speed that your lawn germinates will depend on air temperature, moisture, soil quality, and watering practices.