I saw the future of the lawn care business on hgtv last month. They were using a machine that looked like a large b&d electric mower with hoses attached to it. It was injecting polymer beads, like those used in diapers, into the lawn. Where I live the soil is red clay and aeration is good for maybe a month. I contacted a company called soil moist that sells the polymer only. Has anyone else seen or heard of these machines for injecting the polymers into the lawn. I'm already lining up customers to try this service. the polymers hold water in reserve at root depth and thier presence it the soil helps slow compaction.