So a plumber has diagnosed my drain backup issue as tree roots in my sewer line approx. under the sidewalk about 60' from my house. He scoped and showed me the pictures and cleared with all kinds of tips attached to the snake. From here, I have some questions.
1) My pipe is made of a hard concrete like material, neighbor recently replaced drain line from home to city line and plumbers said it was made of asbestos. If roots already got into the line and I use some kind of root killer every 6mo. Won't the roots that caused the problem still grow slightly in those 6mo and eventually cause a bigger breech in the line?
2) If the line is breeched at the current place, does it stand to reason that the rest of the line could be breeched at some point?
3) Cutting down the tree is not an option, it's in a neighbor's yard and neighbor is uncooperative. City has limitations as well. Is a liner type of repair good or some other form of repair be considered?
4) If you were in my situation, would you use root killer periodically and call a plumber for maintenance every other year at $175 to $200 a pop, or would you bite the bullet and do a repair of the line?
5) If you would choose a repair, would you repair only the section that is an issue now or replace the entire line? (line is about 50 yr old)
6) How much would should I expect each type of repair to cost?
Thanks!