Corona's homes are mostly on slabs, so a sump pump usually means a hillside lot, a below-grade room or a commercial pit. When one stops, the usual culprits are the float switch, the check valve, power or the motor. Call the number on this page to be connected with a local plumber in Corona.

Warning signs
- The pit is full after rain and the motor stays quiet
- The motor runs but no water reaches the end of the discharge pipe
- Rapid clicking on and off
- Water draining back into the basin when the pump stops
- Wet walls or flooring in a lower room
- A breaker that trips whenever the pump starts
Corona conditions
Corona sits on the western edge of the Inland Empire, with hillside neighborhoods such as Corona Hills, Sierra Del Oro and Eagle Glen above the older flatland grid around Grand Boulevard. On sloped lots, water can collect behind a retaining wall or against a lower-level room during heavy winter storms. Some of those properties drain to a basin with a pump that sits idle most of the year.
The City of Corona Utilities Department provides both water and sewer service, treating wastewater at city water reclamation facilities. That sewer is for household wastewater; a sump line connected to a cleanout or laundry sink should be moved outdoors.
A water-powered backup pump needs backflow protection because it draws from your drinking water line. Corona's Utilities Department has a backflow desk at (951) 739-4942 that handles assembly test reports on the City's own form, so call it before choosing that style of backup. A battery backup avoids the question.
What affects cost
- Fixing a float, switch or check valve versus a new pump
- Sump or sewage ejector, and how much water the pit handles
- Distance and height the discharge must travel, which can be greater on hillside lots
- Basin repair or replacement
- Backup pump or alarm
- Permit work with the City of Corona Building Division, which takes applications and inspection requests online through eTRAKiT
What happens when you call
You are connected with an independent plumber who covers Corona. Say whether water is rising now, where the pit is and what you hear. If water is near the outlet, switch off that circuit first. The plumber can tell you whether a permit is needed and whether your discharge setup should change. On a hillside property, it helps to point out where the discharge pipe ends and whether any yard drains or wall weep holes feed the basin, since the fix sometimes involves the drain rather than the pump.
Sump Pumps questions in Corona
Can a pump help with water behind a hillside retaining wall?
Can I send sump water into a sewer cleanout or the laundry sink?
Does a water-powered backup pump need backflow protection?
Is a battery backup worth adding?
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