Why it matters
The WSS30VN arrives as one unit: a 1/2 HP primary pump and a 12 V backup pump, already plumbed together. Wayne says it drops into a 16 in or larger basin in about 15 minutes, and no weep hole is needed.
The primary moves up to 5,100 GPH. On battery, Wayne rates the backup at up to 10,000 gallons per charge using its WSB1275 75 Ah battery, which is sold separately. It has an 8 ft cord and a three-year warranty.
Who it's for, and who should skip it
Good fit if
- Replacing a failed primary
- Adding backup without re-plumbing
- 16 in and larger pits
Look elsewhere if
- Pits under 16 in
- Owners who want a water-powered backup
- Buyers who don't want to maintain a battery
Pros and cons
Pros
- Primary and backup in one
- No weep hole needed
- Three-year warranty
Cons
- Battery sold separately
- Needs a 16 in basin
- Thermoplastic backup housing
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.
- Maximum head is where flow drops to zero; at your lift the pump moves less than its maximum flow. Size it with the sizing calculator.
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 | Polypropylene (PP) | Retailer |
|---|---|---|
| Dimensions (seller) | 27.5"L x 13.5"W x 11"H | Retailer |
| Product weight | 44 lb | Retailer |
| Max flow (maker) | 85 GPM | Retailer |
| Max head / lift (maker) | 20 ft | Retailer |
| Voltage | 12 V | Retailer |
| Model number | WSS30VN | Retailer |
| Warranty | 3 year manufacturer | Retailer |
| Horsepower | 1/2 HP | Retailer |
| Backup runtime (maker) | 10,000 gallons | Retailer |
Alternatives worth comparing
More backup sump pumps we cover
- Liberty Pumps PC257-442 Combo
- Pumps-A-Lot WP25 Water-Powered Pump
- Liberty Pumps SumpJet SJ10 Water-Powered Backup
- Superior Pump 91012 12 Volt Utility Pump
All backup sump pumps, compared in one table · Every Wayne product we cover
Final verdict
A tidy upgrade if your primary is due for replacement anyway.
Where to buy
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