Water main flushing is a process that is performed nationally. Our water distribution system is older and has unlined cast iron pipes. Water flowing through the iron pipes leads to rust build-up in the pipes; this is in addition to the build-up of sediment and minerals that naturally occur in the water.
Therefore, the BPU performs hydrant flushing twice a year to clean out the rust and sediment from the pipes. This allows for greater water flow through the pipes and allows the flushing operators to perform valve and hydrant inspections for fire protection.