I'm putting a bathroom in the basement, everythings already rough plumbed, problem is that the orginal owners had a Zoeller M137-C pump in the ejector pit with a 1.5" discharge to the main sewer line (serves laundry and 1 sink). As I understand it this won't work for toilet. Is there a way to get around completely replacing the 1.5" pipe with 2" pipe? I'd like to avoid cutting into the sewer line. Thanks!