Staff recommends continuing this plan to replace approximately one mile of cast iron mains with leaded joints
, undersized lines, and substandard mains prone to failures.
The TGM plan mechanism orientation functions are determinated by [alpha] and [beta] angles of the kinematic chain elements that have A and B leaded joints
Even with the microstructure difference, all the joints were acceptable as compared to standard leaded joints
(Figure 4, online).
The town's water main, also begun in 1930, was built of 4-inch ductile iron, with leaded joints
and 5/8-inch galvanized service lines.