Flexible connectors provide watertight seal on stormwater systemProblem: A July 2009 stormwater project on Delaware Creek in Toledo, Ohio, required a watertight seal between the pipe and concrete manhole.Solution: A-LOK PREMIUM flexible pipe-to-manhole connectors were chosen to speed up the installation. The 42-inch RCP from Independent Concrete Pipe had a large OD of 51.25 inches. Fortunately the connectors can be used with pipe ranging in size from 12 to 90 inches in diameter.Result: The extra flexibility of the liquid-filled connector made the installation of the pipe by contractor E.F.Zeiler simple and quick, requiring minimum force. 800/822-2565; www.a-lok.com.Rubber manhole risers remedy
