Any ways to prevent backflow of sewer water into the home?

[Andy K]

Hello all,

I mentioned on a post today morning regarding sewer line backup that happened 2 times in a year at a rental property we own.

https://www.biggerpockets.com/forums/52/topics/294...

I would like to ask if there are any mechanisms available that can be installed in the sewer line, to prevent backflow of the sewer water into the home? If so, how do they work and what would be an approximate cost to install that?

Thanks.

- Andy.