moved into a new construction home and am currently finishing the basement. I put a utility sink in and also want to add a small sink for a Bar I am going to build. I am attaching a picture of how I currently hooked up the pump I am using to drain the sink. My plan is to add a different style pump (pic also attached) and discharging out the same line I have tied into the main drain line. The thing I am questioning is venting. Do I have to vent? If yes tying into the vents in the attic isn't an option. Do I just vent out the side of the house? I could run pvc out like my furnace vents currently are. Or can I do a vent less cap on it since its just water I am draining and there shouldn't be any gas or smell. Looking for some feedback. Thanks.