How to install a mechanical boss | cast iron pipe boss

In this video I install a mechanical boss onto a cast iron soil pipe. How to cut the 57mm hole in the soil pipe can be seen here-    • how to cut a hole in a cast iron soil pipe   A mechanical boss can be used to connect a waste pipe, either 32mm or 40mm into a soil stack. Mechanical boss’s have the advantage that you can use them on cast iron or plastic soil pipes. There are a few different sizes available so please ensure you get the correct one. More info on Mechanical Boss’s here- https://mcalpineplumbing.com/traps/co...