From outward appearances, the nicely lettered, 14-foot Isuzu box truck owned by B. Frank Joy LLC in Hyattsville, Md., may not look like a productivity-boosting powerhouse. But a look inside reveals why it's an integral part of the company's sewer division, helping it rack up impressive productivity gains in prepping residential sewer laterals for relining."This jetter truck is very valuable to us," says John Brady, a foreman in the sewer division. "It helps us perform prep work for three lateral relining crews, and saves us a lot of time. I'd say our production has increased about 50 percent since we
