I have a washer that is back flowing from the pipes inside the house. I have a septic tank and a sistrin, what can I do to fix?

Are you trying to say that when the washer drains it backflows into other drains in the house?

If this is the case, it sounds like a post for the plumbing board.

If the washer is failing to drain all the way, then you may have something wrong with the washer.

If the washer fails to drain all the way, but when it does its backflowing in the house, you might have a problem with both. Please advise on specifics.