I need to find the main drain in my home?

Question

i need to find the main drain in my home

Answer 1

call a plumber and they can run a camera and locater down your sewer

Answer 2

If u find the main sewer line than what are u gonna do?  Ur toilet is connected to the main line.  Do u need to run a sewer snake to clear it or  it's just for ur information.  If ur house has a crawl space under house...just go to the line where ur toilet is and follow the 4" pipe to head out to the street.  That line should have cleanouts.  4" pipes, with a opening for cleanout. U should also have 2" pipes that connects to the main line.

Answer 3

I'm sure you do.

Did it occur to you to say what type of home you have? Also which country you are in?

There are so many variations, such as terraced houses, blocks of apartments, detached house in  the suburbs, remote houses in the country etc.

On the information you have provided, the only helpful thing I can suggest is, that you ask a neighbour, or look for it yourself.