Please see https://www.diynot.com/diy/threads/share-your-diy-projects-with-us-no-queries-please.74081/
As already suggested in this forum and it would be much easier to join all pipes (2 waste pipes and 1 rain water pipe) together so that there is just one pipe going to the gully drain.
Please see photos for clarification and exactly what parts do we need. We would like to get all parts and tools from ScrewFix or Wickes.
Please see photos for clarification and exactly what parts do we need. We would like to get all parts and tools from ScrewFix or Wickes.