DM41
New Member
We moved into a home 3 years ago with a radon mitigation system and sealed sump pit. I recently had a water backup installed which changed everything in terms of the previous sealed cover. The company who installed the backup asked me what I wanted to do about sealing the pit. I have no idea. Do you have any suggestions on how to seal a sump pit with several irregular openings needed. Do they make a flexible foam that can be motified or anything like that? I'm at a loss and the plumber is little help.
