Question– “I have to rout out the drain pipe from under the kitchen sink to the septic tank, any advice. I have a hand held router, thanks.”
Answer– In our opinion, you really need a power drain cleaning machine.
Here are a couple of reasons why…
1)You’ll need a sharp blade at the end of the snake/router to get through the blockage.
2)The fact that you are going from the kitchen to a septic tank means your probably going to need a long snake/router and power drain cleaning machine’s are longer than handheld.