Why it matters
Wayne rates the ESP25 at 2,300 GPH at 10 ft of lift. It's built from corrosion-resistant thermoplastic and sounds an alarm when the backup is running.
It needs a deep-cycle wet-cell or maintenance-free 12 V battery, which isn't included.
Who it's for, and who should skip it
Good fit if
- Heavy inflow
- Lifts around 10 ft
- Existing Wayne owners
Look elsewhere if
- Owners who won't maintain a battery
- No-battery backup
Pros and cons
Pros
- High flow at 10 ft
- Alarm
- Thermoplastic
Cons
- Battery extra
- Older design
- Short warranty
Limitations to weigh
- Battery backups need a separate 12 V deep-cycle battery unless one is included; check the battery's age every year.
- Fit a check valve on the discharge so water in the pipe doesn't fall back into the pit after each cycle.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | Plastic | Retailer |
|---|---|---|
| Dimensions (seller) | 7.25"L x 5"W x 10"H | Retailer |
| Product weight | 12.9 lb | Retailer |
| Max head / lift (maker) | 20 ft | Retailer |
| Model number | ESP25 | Retailer |
| Warranty | 2 Years - Parts Only | Retailer |
| Housing | thermoplastic | Retailer |
| Voltage | 12 v | Retailer |
Alternatives worth comparing
More backup sump pumps we cover
- Basement Watchdog CITS-50 Combo System
- Wayne WSS30VN Primary and Battery Backup Combo
- Liberty Pumps PC257-442 Combo
- Pumps-A-Lot WP25 Water-Powered Pump
All backup sump pumps, compared in one table · Every Wayne product we cover
Final verdict
A powerful backup if you can find it at a fair price.
Where to buy
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Questions buyers ask
How much does the ESP25 pump?
2,300 GPH at 10 ft, per the listing.
What battery does it need?
A deep-cycle wet-cell or maintenance-free 12 V battery.