Sometimes in a plumbing system, the water might unexpectedly travel in the opposite direction. When the water flows into the opposite direction in a pipeline, the result could be contamination. If this occurs, the pollutants in the water can endanger the people who drink it. In plumbing, this is called a backflow. The causes of this problem stem either from back pressure, which is higher pressure in the system, or from back siphonage, which is lower pressure in the system.
When this dilemma occurs in a pipeline, it would be wise to contact a plumber for an estimate to repair the damaged system. The quote for repairing the backflow is based on numerous circumstances. For example, the cost for this type of repair for a residence can be different than a repair for a commercial entity. It might also cost more to fix this system for a multi-family residence. When this type of problem happens, the sewer system might have to be examined and fixed. Some pipelines are more complex than others. In addition, the plumber will need to follow all of the local laws relating to fixing the pipelines, including any testing requirements and local permits. Speaking to a qualified plumbing for a backflow repair estimate can make a big difference.