A sump pump is a device that pumps water out of a basement or crawl space to prevent flooding. It is installed in a sump pit, which is a hole dug in the floor of the basement or crawl space that collects water from the surrounding area. The sump pump then pumps the water out of the pit and away from the home.
It is recommended to test your sump pump at least once a month by pouring a bucket of water into the sump pit to ensure that it is working properly. It's also a good idea to test your sump pump after heavy rain or flooding to make sure it's still in good working
If your home is prone to flooding or water leakage in the basement or crawl space, or if you live in an area with high water table, a sump pump may be necessary to protect your home from water damage.