http://www.TheLoneDrainerAndPronto.com.au This drainoscopy clearly shows a collapsed section of the earthenware pipeline, just upstream from the inlet to the sewer boundary trap. The boundary trap is located just inside the front fence on the left hand side of the property. This section of pipe will eventually need to be excavated and repaired. blocked drains collapsed pipe Vaucluse plumber stop tree roots in drains emergency plumber