I'm building a 2nd bathroom at my house, and the location of the room requires a sewage ejector system to get the waste over to the building drain. My building drain goes out horizontally through my basement wall (pitched of course) in 4" cast iron. the connection from the existing toilet upstairs comes in right before it exits the building. My intention is to tie the 2 inch sewage ejector discharge into the horizontal part of the drain by extending the cleanout connection and coming in through a wye. There will still be a cleanout, it will just be extended by about a foot. Is this OK? it seems so, but the code is written a little fuzzy for me. I also need to connect a washing machine drain at this point. I've looked a little regarding washing machine drains, and all I see are standpipes. Is it OK to just connect it directly to the building drain instead of using a standpipe?
Thanks
Thanks