We have a really old metal pipe that’s burst. The water board have replaced it with a 25mm plastic pipe but as it’s on our property are happy to help out but not willing to bury the pipe. It’s going to get down to below freezing this week so I need to get it in.Regs say 750mm but the ground is so rocky it’s going to be impossible.What is the best way to insulate it and what’s the minimum I can get away with. Run is about 10m and also need to go under a stone wall. via /r/DIY http://bit.ly/2FwGYyr
