Emergency plumbing: water spreading or sewage backing up
Keep people away from wastewater and wet electrical equipment. If clean water is coming from a supply pipe, close the nearest supply valve or main water shutoff only if it is safe to reach. If water is coming up through drains, stop using the affected fixtures instead of repeatedly flushing.
What to have ready: Explain whether the water comes from a supply line or drain, whether it is still flowing, and which rooms or fixtures are affected.
Read the emergency plumbing guide