saniflo toilet install

[Jetfixerd]

Hi Hoping for some advice about installing a saniflo toilet. I live in a cape home and the sewer drain is 3 feet off the ground. I have a kitchen sink and a laundry sink pump connected to the main sewer line. it is connected right behind the clean out. I was thinking about adding into that drain pipe run a saniflo pump discharge line. Is that too many things connected to the sink drain which was the primary thing.