Bypass pumping is commonly used when municipal sewer or stormwater infrastructure requires repair, rehabilitation, or maintenance. Because these systems must remain operational, a temporary diversion control is critical to maintain continuous service and prevent environmental or public health risks.

Aging infrastructure, rapid urban intensification, and ongoing capital works programs are driving frequent upgrades to sanitary sewers, storm systems, manholes, and pumping stations.

Surface-mounted pumps are set up to divert flow from our upstream access point (typically a manhole), through temporary HDPE or fused pipe systems, and discharge into a downstream structure. This setup allows contractors to execute repairs in dry, controlled conditions, minimizing downtime, and risk.

To isolate the work zone, inflatable pipe plugs or mechanical isolation systems are installed upstream and downstream of the repair section. This process requires:

• Careful flow monitoring and reduction strategies
• Robust spill containment and contingency planning
• Close coordination with municipalities, inspectors, and project stakeholders.

Weather variability (freeze-thaw cycles), high groundwater levels, and dense urban areas increase the complexity of bypass operations, making reliability, redundancy, and rapid response capabilities essential.

Once work is complete, plugs are removed and the temporary system is taken down.