To scour them use a water Jetter as it removed years of build up soap scum and grease deposits and scale.
Concrete and cast Iron pipes are made of cast iron and plastic piping systems normally use plastics
To connect PVC to cast iron pipes, you can use a rubber coupling with stainless steel clamps. Make sure the pipes are clean and dry before attaching the coupling. Tighten the clamps securely to create a watertight seal between the PVC and cast iron pipes.
Yes, they can be opened for routine sewer and drain and leader cleaning
Lots of penetrating oil and / or carefully heating with a flame.
Rusted cast iron.
I'm not sure, I believe so though.
Sewer pipes are typically made from materials like PVC, which is usually a dark gray or white color, and clay, which is often an earthy brown or reddish hue. In some regions, cast iron sewer pipes may also be used, which have a black or dark metallic appearance. The color can vary based on the material and local regulations, but these are the most common colors observed in sewer piping systems.
Welding with cast iron welding rods
cast iron
4" is the standard house sewer main
The best way to connect a cast iron pipe to a PVC pipe using a cast iron to PVC adapter is to first clean and prepare the ends of both pipes, then apply a suitable adhesive or sealant to the adapter and securely attach it to both pipes according to the manufacturer's instructions.
galvanized water lines, cast iron drain lines, sometimes lead pipes, terracotta or clay pipes, and in rare cases wooden pipes.