Sewage Bypass Pumping
Bypass pumping is the act of pumping sewage around a section of sewer line in pipe or channel specifically constructed for the purpose of bypass. Bypass pumping allows the repair or replacement of a section of sewer or infrastructure without causing mess or spillage on public or private property and without affecting the flow of sewage or water in the immediate or surrounding areas while repairs are underway. There can be numerous problems when trying to keep these areas open during work.
When existing sewer lines are rehabilitated, the flow of sewage typically cannot be diverted as simply as one might imagine; it must be bypassed – or temporarily pumped around the section of pipe to be repaired or replaced. In order to do this, pumps and equipment capable of pumping trash and sewage-laden effluent must be used.
Bypass pumps are installed upstream of the faulty pipe. A temporary pipeline is then installed from the pumps downstream of the pipe requiring repair or maintenance. The bypass pipe will then be merged with regular sewer lines downstream until the repair work is complete. Temporary plugs are also set into place between these points to allow for removal or repair.
There are many factors that determine the proper pump and equipment required. Depending on the businesses or homes serviced, the bypass line may handle pumping from a few hundred to a few thousand gallons per minute.