John Graves Jr. loves a challenge, and that may be one reason he is successful as an onsite installer in Delaware County, Ohio. “Seasonal high water tables at depths of 12 to 18 inches are common in this area, and people are starting to recognize the relationship of a high water table and system performance,” says Graves, a second-generation installer based in Sunbury, about 28 miles north of Columbus.History says that when it’s time to innovate, Graves is there. His company, Graves and Son Inc., in business for 48 years, installed the first mound systems and the first drip irrigation
