Soil Softener™ is designed to break up hard clay soil to allow proper drainage and water penetration. Lingering puddles or pools of water in lawn after watering or after a thunderstorm can choke your lawn roots of oxygen and weaken or even kill the grass in that area. Not only that but salts can accumulate in those areas. Even worse, mosquitoes are given a place to breed. Soil Softener™ can break up those hard pan areas to let water drain naturally. Once the water percolation action is restored, you can reseed that area and start enjoying your lawn.