Jeff Handy
Pro Handyman, NOT A Pro Plumber
The condition of the pipe in the floor is terrible.
Totally falling apart from rust.
Inserting a new pipe inside it will narrow the already skinny path the drain water has to follow.
It is time to bust up the floor and run a new pipe to a bigger drain line.
Or install the laundry tray pump as suggested.
How far away is the sink in another room?
Maybe you can rig up a drain going through the wall, to reach it?
Totally falling apart from rust.
Inserting a new pipe inside it will narrow the already skinny path the drain water has to follow.
It is time to bust up the floor and run a new pipe to a bigger drain line.
Or install the laundry tray pump as suggested.
How far away is the sink in another room?
Maybe you can rig up a drain going through the wall, to reach it?