I have a quick question. I did a vacant house today where a section of 3" cast iron sewer pipe was replaced with PVC. Instead of using any kind of connector, the plumber leaded the PVC into the cast iron hub. I've never seen this before. I would think with the expansion and contra...
The pulling work of the cast iron pipe is accomplished by moving the base plate 1 to the right and left to locate a pulling device 4 on the extension line of the axial center X-X line, moving the machine 5 again to the base plate 1 side to fit the leading end part of the device...