4' corrugated black plastic pipe and rats
A friend has 4" corrugated black plastic pipes buried in the ground for water drainge. When she had drainage problems and there were holes in the ground, the pipe were dug up for replacement. She thought the tree roots broke them but as it turned out, the pipes look like they were chewed by some small animals. We are thinking of rats. Is that possible? If so, what can be done to prevent it from happening again?