Wayne WSS30V Sump Pump With Battery Backup System

A good sump pump is a small investment to make when you consider the level of protection they provide. A system with a battery backup built in makes for complete protection from flooding and the devastation that it can cause to your home’s structure as well as your possessions. The Wayne WSS30V sump pump with battery backup is a highly rated unit with 1/2 HP and 12 V working for you.

Wayne WSS30V Overview

WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty
  • Indoor Use Only: This 1/2 HP WAYNE indoor sump system is perfect to keep your basement or indoor area dry during heavy water flow, even if you lose electricity; whether it’s rain, snow melting or more, WAYNE model WSS30VN can keep your basement dry
  • Back-Up Ready: WSS30VN will pump up to 5,100 GPH and remove/evacuate/expel/get rid of up to 10,000 gallons on a single battery backup charge; WAYNE WSB1275 75 AH Battery is required for back-up but not included
  • Efficient Design: Comes preassembled and ready for drop-in for easy installation in 15 minutes or less with no need to drill a weep hole; fits in 16” diameter or larger sump basins
  • Additional Features: The system has been tested to 1 million cycles for long-lasting use; comes with 8-foot SJTW power cord
  • Quality You Deserve: Proudly assembled in the USA for quality you can trust; warrantied for 3 years for dependable, efficient, & ultra-quiet performance

Last update on 2024-05-26 / Affiliate links / Images from Amazon Product Advertising API

The WSS30V is a complete sump pump system that includes a battery backup. As you probably know, the backup pump is an important part of your home’s flood prevention measures because when the power goes out, the battery backup will take over.

Power frequently goes out during storms and that can be the time you’re most in need of a working sump pump. With the the battery backup in place, you don’t have to worry about power outages anymore. The backup can pump 10,000 gallons on one charge.

Homeowners often add a backup pump to their existing system but in the case of the WSS30V you have a complete solution all in one box. The unit comes pre-assembled and pre-plumbed and can be installed in about 15 minutes.


Max. flow rate, primary: 5100 Gallons Per Hour

Max. flow rate at 5 feet of discharge lift, primary: 4500 Gallons Per Hour

Max. flow rate at 10 feet of discharge lift, primary: 3840 Gallons Per Hour

Max. flow rate at 15 feet of discharge lift, primary: 3060 Gallons Per Hour

Max. flow rate at 20 feet of discharge lift, primary: 2040 Gallons Per Hour

Primary Pump Construction: Double epoxy-coated cast iron

Backup Pump Construction: Reinforced thermoplastic

Max. flow rate, backup: 2900 Gallons Per Hour

Max. flow rate at 5 feet of discharge lift, backup: 2340 Gallons Per Hour

Max. flow rate at 10 feet of discharge lift, backup: 1680 Gallons Per Hour

Max. flow rate at 15 feet of discharge lift, backup: 600 Gallons Per Hour

Backup Run Time: Up to 26 hours

Battery Type: 12V deep cycle marine/RV battery

Sump Basin Diameter: 15 inches or larger

Warranty: 5-year

Recommended Battery for the Wayne WSS30V:

The manufacturer recommends the Wayne WSB1275 75Ah AGM Sealed Lead Acid Battery for use with this sump pump. The battery is pre-charged and requires no maintenance.

  • If your sump pump runs once per minute, this battery will give you 23 hours of pumping to protect your property.
  • If your sump pump runs ones every five minutes, you’ll get 100 hours.
  • If your sump pump runs once every ten minutes then you’ll have 172 hours of protection from flooding.
  • Supports up to eight hours of pumping continuously.

This battery is priced higher than generics and bargain brands but you’ll have the added peace of mind of knowing that you’re using the recommended battery that’s the best on the market for this application. That’s worth a little extra upfront cost in my opinion, when it comes to avoiding serious damage in your home. I have enough life experience at this point to say that buying the best batteries available is generally a good strategy. Especially when you’re talking about powering something as important as a sump pump.

Now that you know what kind of battery you’ll need, let’s get back to talking about the pump itself.

WSS30V Features:

This model has an integrated vertical float switch that operates automatically and reliably. Rated as “ultra-quiet” — you shouldn’t be bothered by any noise coming from this sump pump. The only real noise you should hear is the sound of the alarm that alerts you when the backup pump has kicked in. This alert sound will go on for a minute or so and then the backup will run quietly.

It’s important to know exactly when the backup sump pump starts running so that you can monitor battery life. In the event of a power outage it’s important to keep an eye on your charge level. If you live in an area with frequent outages and your backup pump gets put to heavy use, you may want to keep an extra battery in case you’re on backup power for an extended period of time. Make sure you check your charge level on your extra battery.

A LED indicator shows you what the battery’s charge status is. Main pump and backup have float switches.

Out of the box, this is a drop-in ready setup that just needs a battery and about a 15-minute simple install to be up and running. Check valves are included. The two pumps discharge into one pipe at the top.

No vent hold is needed because the primary and the backup are both top-suction pumps.

An important point to remember is that the sump diameter needs to be at least 15 inches in diameter for this unit to fit. The two pumps sit next to each other at the same level, they’re not meant to be split up.

Also, please note that this backup pump will only run on battery power. The battery will sit next to the unit outside of the sump pit.

Most users are very satisfied with the Wayne WSS30V, with over 560 reviews as of this writing and an overall rating of 4.4 start out of 5 on Amazon.

About Wayne Pumps:

The Wayne company was established in 1928 and is based in Harrison, Ohio.  The company is one of the most trusted brand names in the world of sump pumps and other crucial water management systems, so if you’re thinking about buying a Wayne you can be sure that you’re getting a reliable, quality unit.

Others Sump Pumps to Consider:

Glentronics, Inc. PS-C22 PHCC 2770 Gallons Per Hour Pro Series 1/3 HP Combination Sump Pump System with battery box

Zoeller 508-0006 Aquanot 508 ProPak53 Preassembled Sump Pump System with Battery Back-Up

The Wayne sump pump with backup is an excellent solution for homeowners in need of a reliable sump system. Getting the primary and backup in one box makes for an easy install and a clean integration into your basement. If you spend slightly more for the Wayne battery, you’ll have a solid, quality system that can keep you from suffering serious damage to your property. (In other words, don’t let a few dollars’ savings on an inferior battery end up being the weak link in your flood protection.)