When it rains hard in Union County, your sump pump is the only thing standing between a dry basement and a flooded one. Most homeowners never think about theirs until the moment it fails — usually in the middle of a storm, when it’s too late to do anything but watch the water rise.
The good news: sump pump failures are almost always preventable. A pump that’s tested and maintained before rainy season kicks in will handle a heavy storm without issue. Here’s why maintenance matters right now, and exactly what to check.
Why rainy season is when sump pumps fail
A sump pump that sits unused for months can develop problems that don’t show up until it’s actually needed. A stuck float switch, a clogged intake, a worn check valve, or a dead battery backup — none of these are obvious on a dry day. They only reveal themselves when heavy rain forces the pump to run continuously for hours, which is exactly the kind of stress that exposes a weak component. Testing your pump before the rain starts is the only way to catch these problems while there’s still time to fix them.
Sump pump maintenance checklist
- Test the pump. Pour a bucket of water into the sump pit until the float rises. The pump should kick on within a few seconds and empty the pit smoothly and quietly.
- Clean the pit. Remove dirt, gravel, and debris that can jam the float switch or get pulled into the pump housing.
- Inspect the check valve. This valve keeps water from flowing back into the pit after the pump shuts off. If you hear water draining back down after each cycle, the valve needs replacing.
- Check the discharge line. Walk outside and confirm the pipe empties well away from your foundation and isn’t blocked by mud, leaves, or debris.
- Test the battery backup. Unplug the primary pump and confirm the backup kicks in immediately. Heavy rain is the most common cause of power outages in Union County — exactly when you need the backup most.
- Confirm the power source. Make sure the pump’s outlet and breaker are in good condition and not shared with anything that could trip during a storm.
- Clear window wells and exterior drains. Standing water near the foundation adds pressure your sump pump has to work harder to relieve.
Signs your sump pump won’t make it through rainy season
Get it looked at now, not during the next storm, if you notice any of the following: the pump runs constantly even without rain, it makes grinding or rattling noises, it’s more than 7–10 years old, or it struggled to keep up during the last heavy rain. A pump on its way out almost always fails at the worst possible moment.
What to do if your basement floods anyway
If water is already coming in, shut off electricity to the affected area at the breaker if it’s safe to do so, move valuables to higher ground, and call a licensed plumber right away. Standing water against a foundation for more than a few hours significantly raises the risk of structural damage and mold.
Continental Plumbers has served Union, Essex & Middlesex Counties since 1985, with a 24/7 emergency line for exactly this situation. If your sump pump fails during a storm, call (973) 900-0430 for immediate help, or schedule a pre-storm inspection online.
Frequently asked questions
How often should a sump pump be serviced?
Test it at least twice a year — once before rainy season and again in early spring. Homes with a history of basement flooding should test monthly during wet months.
How long does a sump pump last?
Most sump pumps last 7 to 10 years with regular maintenance. Pumps that run frequently, such as in homes with a high water table, tend to wear out sooner.
Do I need a battery backup sump pump in Union County?
Yes — heavy rain is the most common cause of both flooding and power outages in the area, which means a battery-only or primary-only pump can fail at the exact moment you need it.
Can I maintain my sump pump myself, or do I need a plumber?
Basic checks like testing the float and cleaning the pit are safe to do yourself. If you find a worn check valve, a dead battery backup, or the pump struggles during testing, it’s worth having a licensed plumber inspect it before the next storm.
