I just moved in a house that has rain gutter that drains into these pe piping that pours out into a overflow pop-up in front of the house. There are some roots in the pipe that is clogging a section in my backyard that is causing flooding. I was able to stick a cheap endoscope camera to find the root blockage. I called a plumber to snake it out but when he saw my pipes, he said he can’t do it because his snake would break my pipes. He said it just best to replace it. These pipes are buried under concrete and would be expensive to replace. I just want to know if there is anything I can do and if this plumber was right. Below is the type of pipe I have. White on the outside and black on the inside. I did some online like search and they seem to be polyethylene pipes.