Hi can anyone help me identify this pipe that I have found to be the source of a leak in the void underneath the kitchen floor. It runs underneath my mid terrace and is made of clay, however it's not circular, it's more of a arch shape with no bottom that's been laid straight onto the clay ground when built in 1910 and covered with clay to a depth of around 3 foot, it's got a very slow flow of water coming out of it which seems to be fresh clean water. I've removed the broken section but haven't a clue what it's for and how to repair it. Been in touch with Yorkshire water and a local builder who both don't know what it is and can't help. It's caused a few damp issues and could have been leaking for some time. I'm struggling to upload pictures so any suggestions would be greatly appreciated. Thankyou.