Planning a new finished basement project that’s going to have a bathroom, bar or laundry room? If you said yes then you have to start thinking about your sewage lines. Not the most glamorous topic for discussion I will admit, but another topic that we must discuss if you are planning on installing any new plumbing systems in the finished basement.
The big question that is everyone’s mind is “will I need to install some sort of sewage ejection system?” Some might call this basement drain system an “up-flush” system.
Well to answer this question, you need to answer one other question first and that is: does your main sewage line exiting the house go through the floor or through the exterior wall of your basement? If it exits down through the concrete floor you do not need a sewage ejector system. If it exits through an exterior wall above the concrete floor you need a sewage ejector system.
If you need one…DON’T PANIC! It’s not all that bad of a project to install one of these. Anyone can complete this project themselves with the right set of instructions.
My company uses the “in-floor” style ejector system which consists of a sewage ejection basin with a sewage ejector pump being installed below the basement floor surface. We then “pitch” all waste water from the bathroom, bar or laundry area over and down into this sewage ejector basin.
Some items like sinks and washing machines can pitch waste water to the “pit” above the floor line. Other plumbing fixtures such as toilets and showers need their waste water lines to be pitched to the “pit” under the concrete floor…this is a little more involved but you can do it fairly easy.
In this video I talk about the sewage ejector pit being installed below the floor-line in a basement where the main sewage line went through the exterior wall 3′ higher than the concrete floor.