P.O. Box 700933 San Antonio, TX 78270-0933 1-800-950-8268 1-800-616-3569 Plant: (210) 651-9618 Fax: (210) 651-6219email: noflowin@flash.net No Flow In Flow Manhole Dish / Insert INSTALLATION The manhole frame shall be cleaned of all dirt and debris before placing the manhole insert on the rim. The m...