Investing in a custom-built vacuum truck dedicated primarily to just one customer might sound like a gamble to some drain cleaning contractors. But it made perfect sense to Greg Franklin, the owner of Franklin Sanitation LLC in Huron, Ohio — once he did the math.The calculation worked like this: It usually took Franklin Sanitation four employees and two trucks to clean out clogged drainlines at the dozens of restaurants located at a large, 364-acre amusement park situated about 10 miles northwest of Huron. One truck pulled a trailer-mounted water jetter. The other was a vacuum truck that sucked up sewage
