I’m pouring concrete over rough plumbing (as pictured). The plumber attached the shower pan to the drain. How can I get concrete under the shower pan? Radon is an issue in my area. I would like to seal the floor in some way.
How thick should I pour the new floor? The existing floor is 3’’ to 4’’ depending on the spot. Do I need to prep the sides of the existing concrete to get the new stuff to attach properly?
The pipes are in a 9’ trench going to the ejector pit. Do I need to pour this in sections?
Should I wrap the ejector pit or pipes where they exit the concrete to protect from movement/settling? Should I remove dirt and add sand around the pipes?
I have reviewed theses posts: