A flexible pipe to manhole connector shall be used whenever a pipe pentrates into a precast concrete manhole or structure. The connector shall be the G3 Boot System featuring component packaging as manufactured by A-LOK Products, Inc., Tullytown, PA or approved equal.

The design of the connector shall provide a flexible, watertight seal between the pipe and concrete structure. The connector shall assure that a seal is made between (1) the connector and the structure wall by placing the connector and expansion band into the center third of the concrete hole opening. The band is then expanded by tightening the expansion mechanism increasing the bands overall circumference and compressing the connector against he sides of the hole opening. (2) The seal between the connector and the pipe shall be made by compressing the connector against the outside circumference of the pipe by means of a stainless steel take-down band.