Pumping main sewer. Our 225mm steel sewer main is to have a tee inserted and we have excavated and found a nylon sleeve around the pipe. Prior to cutting into the pipe I would ask what would be the need for such?

Hi Mike:

I can't imagine why unless the cast iron drain pipe had a hole in it and they used the sleeve to cover the hole?

Could you post a picture for us?

Let me know, OK?

Mark