Main Lining in New York. Main lining is critical in New York. When main lines leak or corrode, they can also damage above ground surfaces, cause pollution and start severe flooding in treatment facilities. The Perma-Main™ lining system uses the most technologically advanced cured-in-place pipe lining to rehabilitate New York City main line pipes. If you live in New York and would like to learn more about the Perma-Main™ lining system or are interested in seeing a live demonstration, call us any time!