How to Winterize a Sump Pump Before Freezing Weather
Key Takeaways Protect the exposed discharge pipe first: standing water in an above-ground or unheated section can freeze and block the pump’s outlet. Turn off power before cleaning or removing a pump, but do not leave an active basement sump system disabled for winter. Clear leaves, sludge, and other debris from the pump and pit, then confirm the discharge point is away from the foundation. Use insulation or a purpose-made freeze-resistant discharge fitting where appropriate, following the product and pump instructions. Table of Contents What does it mean to winterize a sump pump? When should you prepare the sump pump for a freeze? How do you inspect the discharge line before winter? How can you keep the discharge pipe from freezing? How do you clean and inspect the pump and pit? What should you check on the outlet and check valve? How should you monitor an active sump pump in winter? What should you do if the discharge line appears frozen? Common winterization mistakes to ...