Groundworks at the Richmond project
With the plumber back from another vacation, it was time to get some work done at the new location. First up is the basement level plumbing install known as the 'groundwork'. In a new install the plumbing code requires a back flow preventor, and this is the first piece installed on the new 4 inch abs pipe that leaves the basement.
Many clients in the past have filled out a questionnaire for their homeowner insurance and called me to ask if there was a sewer back up valve. The answer to this is always yes, unless there is a lift station in the basement due to a shallow sewer service in the street. In that instance there generally isn't a back flow preventer in the basement slab.