I am replacing the lead pipe to our property (Anglian Water do it FOC). I am running to a new entry point so it comes in under the kitchen sink. I could use an Insuduct to come in externally, but I want to know if I can dig under the foundations to bring the pipe inside? I have had to dig the floor out internally, down to the foundations, to fix a steel wind post to. Our 1930's semi has shallow strip foundations which would be easy to get under, unlike modern houses with deeper ones.