Test Sump Pump and Backup Battery

Begin with the primary pump: slowly pour a 5-gallon bucket of water into the sump pit and confirm the float switch triggers and the pump activates and removes the water. Watch the pump for 30–60 seconds after the water is gone — if it continues to run with no water, the switch may be stuck. Check the discharge pipe outside to confirm water is exiting well away from the foundation. For battery backup units: locate the battery (usually a 12V marine-type battery) and check the charge indicator on the controller. If no indicator, use a multimeter to check voltage — a healthy battery reads 12.6V or higher. Test the backup by unplugging the primary pump and repeating the bucket test. Sump pump batteries should be replaced every 3–5 years. A single basement flood from a failed pump can cause $10,000–$30,000 in damage.