Where cellar water comes from
- Groundwater pushing up through the slab after days of rain
- A floor drain backing up when street sewers surcharge
- A failed sump pump or a pump overwhelmed on storm night
- A burst pipe, water heater or washer hose inside the cellar
- Surge or tide water coming in over the sills
Where the water came from sets the category. Groundwater and a clean pipe break start as Category 1 or 2. A drain backup is sewage cleanup, and outside floodwater is Category 3.
