A sump pump sits in a pit at the lowest point of a basement or crawlspace and pushes groundwater out before it can rise onto the floor. Most people only think about it when it stops working, usually during a heavy storm. Warning signs include a pump that runs constantly, cycles on and off rapidly, hums without moving water, makes grinding noises, or does not kick on when the pit fills.
Common failures include a stuck or tangled float switch, a burned-out motor, a clogged intake screen, a failed check valve that lets water flow back into the pit, or a discharge line that is frozen or blocked outside. A pump that is too small for the amount of water coming in will also struggle.
Haygood Plumbing connects you with an independent plumber in San Francisco, CA who works on sump pumps. The plumber who takes your job can test the pump, replace worn parts, swap in a new pump, or install a new pit and pump where there was none. Many homeowners also ask about a battery backup pump or a water-powered backup, which keeps working if the power goes out during a storm.
A simple test you can do yourself is to slowly pour a bucket of water into the pit and watch the pump start and stop. Check that the discharge pipe outside is clear and directs water away from the foundation.
When you call, say whether the pump is running, how old it is, and whether you have had water on the floor. Ask the plumber about pump size, backup options, and how often the system should be checked for homes in San Francisco, CA.