Watering is one the most important steps in ensuring your turf establishes well. One hours watering immediately after laying the turf is worth seven hours later on. Use a sprinkler rather than a hose pipe to ensure even distribution.
If you have weak water pressure or if there is the threat of a prolonged dry spell you may wish to consider adding water retaining gel to the soil. The water retaining gel will reduce the need for watering by up to four times.