10-12-2009, 05:59 PM
That thump is the sound of the check valve closing. That valve keeps the water that was pumped out from running back down the pipe and back into the sump pit.
Typically, houses are built with drainage tiles around the foundation which in turn drain into the sump pit. The sump pump obviously pumps the water out of the sump pit. This whole process keeps water away from the foundation and keeps your basement dry.
Typically, houses are built with drainage tiles around the foundation which in turn drain into the sump pit. The sump pump obviously pumps the water out of the sump pit. This whole process keeps water away from the foundation and keeps your basement dry.