A sewer leak on your drain line, or main sewer line, can be hard to detect and can also damage your property. Standing or ponding water from leaking sewer lines are also a health hazard and frequently go undiagnosed. Leaking drain pipes can also undermine your drain system and cause separations. Our plumbers often perform a dye test to pinpoint the source because the source of leaking water can be hard to detect. Commonly, pipes or water service lines are replaced, only to discover they were not the source of a leak. Surprisingly enough, sewer water is not always dirty or discolored and often gets mistaken for a water supply line leak.