I am trying to join an old black plastic pipe 18mm od x 12mm id to a modern 15mm plastic pipe. The old black pipe is in an outhouse and I suspect is 50's / 60's era. Have been to my local plumber's merchant to be met with blank looks and the sucking of teeth. Can anyone help with this size conversion. Prefer brass with olives but anything to couple this would be fine.
- posted
12 years ago