Hello to all. I am going to put in a full bathroom down our basement. Our house was built in the 50's, so we only have one bathroom on the main floor. Nothing is roughed in downstairs for a bathroom, so I willl be starting from scratch. We have located the clean out along the front wall and plan on breaking up the concrete so we can install a "Y" for our new drains. The bathroom will be about 10' from the clean out and 15' from the main stack. Do we still need to vent the new bathroom ?
You need to go get a $20 'How To' plumbing book from Home Depot, Menards, Lowes, etc. and read through it and understand the principles of plumbing. It helped me immensely in doing what you are about to do.