To keep growing his 7-year-old plumbing business, Christopher Sbrocco — the owner of Pro Service Plumbing in Cleveland — invests in durable, revenue-generating equipment; turns up the volume, as in serving as many customers per day as possible; and aims to generate word-of-mouth referrals, the best form of advertising.
The RIDGID K-6200 drum drain-cleaning machine he bought earlier this year helps him pull off this trifecta on a weekly basis. It’s a durable unit that amps up sales. It gets through clogs quickly, allowing technicians to make more service calls. And after the machine proves its mettle, grateful customers refer the












