Often, what appears to be a sewer backup may simply be a drain clog. Hair, grease or foreign objects can get stuck in an individual sink, tub or toilet drains and not allow water to pass.

At 1.5-gal. per minute for the smaller 1,350-PSI jetter, however, the drain line had better be partially open or you’ll find you’re creating a flood within the kitchen cabinet. Combining both types of ...

Main drain line: This is the line inside the home that all of the toilets, sinks, showers and appliances drain into. It’s usually 4 inches in diameter and can be plastic or cast iron.