Our skilled plumbing technicians have the expertise to deliver the right water pressure for the problem at hand, which varies depending on the condition of the pipes. The process of removing buildup involves working with gravity. The majority of home plumbing systems use gravity to pull wastewater out of the home and into the local sewer system. The hydrojetting tool works from the bottom up. Inserted into the downstream portion of the system, it moves upstream, working its way up through the system. As the water scours the pipes, the debris that's dislodged then moves down, with gravity, safely flushing the debris out of the system.