INTERNAL JOINT SEAL USED TO REPAIR AGING WATER MAIN

PROBLEM: 

An aging cast iron water main’s deteriorating joints were threatening water quality and experiencing exfiltration in a Southwestern U.S. city. Previous repair methods had been employed, but a more permanent solution was required to make the water supply system more efficient, reliable and clean. Trench repair would have disturbed the museums, galleries, cultural centers, community organizations and trees that...