And we include it for free with every Scotts Lawn Service®program.
Water Smart improves turf quality because it improves a lawn's ability to absorb water and nutrients — it works by slightly 'breaking up' the soil and making it easier for it to absorb water. This helps move fertilizer and other applications into the soil more evenly and uniformly, which helps maximize the effect of watering.
Please note: Water Smart is not an excuse to stop watering — most lawns require an inch a week to thrive. We'd like to recommend that you water for longer periods of time so, that the water gets deeper — encouraging deeper roots for your turf.
Be sure to cut your lawn at the highest setting during the hot summer months. The additional leaf surface left after mowing allows the grass to store more water and stay cooler. (Makes sense when you think about it.)

Long, Infrequent, Deep Watering vs. Short & Frequent