Pipe problems

The plumber's mate had to scrabble around in my back garden for some time before he was able to locate the end of the sewer pipe last week. The plumber had been in the day before and jetted away the blockage and now his mate was attempting to find the end of the pipe to feed in an exploratory camera.  When he eventually located the pipe his camera soon found the blockage culprit.

Even a tiny hole is probably enough to encourage a tree to grow into a pipe and my backyard trees have probably been tapping this rich water source for some time judging by the size of the roots in the pipe. The offending pipe is two meters deep so they are going to have to take down the back fence and bring in a big digger. The fence has needed replacement for some time and now the tree-root-problem has forced my hand.