Even with a sprinkler system, your lawn might sport some brown patches — especially in places where water runs off before the grass can absorb it. A soaker hose over the area would probably work, providing a slower rate of water flow over a longer period of time, but runoff could still be a problem. Watering crystals would work, but according to most experts they need to be tilled into the soil, and tearing up your yard will make things worse before they get better. A grass root irrigator is probably the best tool for the job.
Similar to the deep root irrigator, this tool also features a depth stop and increased coverage area. It’ll take a little work, but you should see results pretty quickly, as runoff from underground is minimal.
Street pricing starts at $30.