Buying a Union Fitting So the Next Pump Swap Is Easier
A union fitting lets you disconnect a sump pump without cutting the discharge pipe. Here is how to choose the right size and install it…
Setup & accessories
Practical help choosing, installing and troubleshooting sump pumps before the next storm.
Setup
Check valve for a sump discharge line
A sump pump check valve prevents discharged water from flowing back into the pit. Choose one that matches your pipe size, pump discharge,…
Sump pump kit with basin for a new pit
A sump pump kit with a basin can simplify a new pit installation, but the parts still need to match your pit depth, inflow, discharge…
Can Two Sump Pumps Share One Discharge?
Two sump pumps can share one discharge pipe, but the setup must prevent backflow and provide enough capacity for both pumps. Here is how to…
Dedicated Circuit Versus Sharing With Basement Lights
A sump pump is usually better served by its own branch circuit because a tripped breaker, overloaded circuit, or lighting fault can leave…
How to Install a Check Valve on a Sump Line
A check valve keeps water in the discharge pipe from flowing back into the sump pit when the pump stops. Here is how to choose, place, and…
Should a sump pump have a check valve
A sump pump should usually have a check valve on its discharge pipe. The valve prevents water from flowing back into the pit when the pump…
What Size Discharge Pipe for a Sump Pump?
The correct sump pump discharge pipe is usually the same diameter as the pump outlet. Learn when 1-1/4-inch or 1-1/2-inch pipe is…
Air-gap versus sealed lid on a sump pit
An air-gap lid is easier to access but can let basement air, moisture, and soil gases pass through. A properly fitted sealed lid limits…
Airtight lid and a vent for a sealed pit
A sealed sump pit needs a lid that fits the basin and properly sealed openings. Whether it also needs a vent depends on the pit’s use,…
Extension cord on a sump pump is a bad idea
A sump pump should normally plug directly into a properly located receptacle. Extension cords can create electrical and reliability risks,…
GFCI protection for a sump pump circuit
GFCI protection can reduce shock risk around a sump pump, but code requirements depend on your location and installation. Never bypass a…
Grading and Gutters Instead of a Bigger Sump Pump
A bigger sump pump may not solve water that is being directed toward your foundation. Check gutters, downspouts, and grading first, then…
How often to dump a bucket of water in the pit as a test
A bucket test confirms that the sump pump’s float switch starts the pump and that water can discharge from the pit. Test it regularly, but…
How to test a sump pump before a storm
A simple water test can show whether your sump pump, float switch, and discharge line are ready for heavy rain. Inspect the setup first,…
Municipal storm sewer hookup rules versus pumping to daylight
A storm sewer connection is not automatically allowed just because it carries rainwater. Check local approval requirements before…
Radon considerations when covering a sump pit
A properly sealed sump pit cover can help limit radon from entering the home, but it is not a substitute for testing or a complete radon…
Where the Sump Pump Discharge Line Should Exit
A sump pump discharge line should release water where it can drain away from the house without flowing back toward the foundation, creating…
Window well drain tied into the sump instead of a second pump
A window well drain can often use an existing sump basin if it can reach the basin by gravity and the sump system has enough capacity. The…
Backup Systems
How Long Does a Sump Pump Backup Battery Last During an Outage?
A sump pump backup battery may last from several hours to more than a day, depending on pump run time, battery capacity, water inflow,…
Water-powered backup needs household water pressure
A water-powered sump pump backup can operate during a power outage, but only if your home has sufficient pressurized water and the plumbing…
