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The Wayne wss30v - 1/2 hp combination primary and backup sump pump system is available for purchase today.

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Wayne WSS30V - 1/2 HP Combination Primary and Backup Sump Pump System

(Based on expert analysis, manufacturer ratings and customer reviews)
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
60 Reviews
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  • Features
  • Specs
  • 9
    Q&A 
  • 60
    Reviews
  • Articles
  • Shipping
  • Accessories
Style
Combo Sumps Pumps
GPH
4200
Gallons
HP
1/2
Horse Power
Switch Type
Vertical Float Switch
Primary Pump and Back-Up System
Simple Drop-In Installation!

1/2 HP Cast Iron Primary Pump w/ Vertical Float Switch (CDU800)
Oil-filled, thermally protected motor prevents overheating
Reliable, reinforced poly-carbonate impeller
Top suction design filters debris and minimizes clogging

High-Flow Battery Back-Up Pumps Up to 3300 GPH @ 0' (ESP25)
Corrosion-resistant thermoplastic construction
Reliable Reed Float Switch for Automatic Operation

Includes:
(1) 1/2 HP Primary Pump w/ Vertical Float Switch
(1) High Flow Battery Back-Up Pump w/ Reed Float Switch
(2) Heavy Duty Check Valves
(1) Battery Charger w/ Alarm & Battery Case

Requires (1) 12V Deep Cycle Battery (SOLD SEPARATELY)


Need Help? Ask Our Sump Pump Experts.
Base
Min Sump Basin Size
15 Inch
Motor
Battery Included
No
Thermal Protection
Yes
Power Cord Length
8 Feet
Oil Free Motor
No
Pump
Housing Material
Cast Iron
Handles Solids
No
Float Type
Vertical Float
GPH @ 0 feet
4200
GPH @ 5 feet
3900
GPH @ 10 feet
3150
GPH @ 15 feet
2100
GPH @ 20 feet
600
Discharge Port Size
1-1/2 Inch
Built-in check Valve
Yes
Float On
9 Inches
Float Off
4 Inches
Manual Override
No
Overview
Weight
35 Pounds
Consumer Warranty
5 Years
UPC
040066214713
Model
WSS30V
Download Documents
Need Help? Ask Our Sump Pump Experts.

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  9 Questions
Q: What size battery is required. Does charger shut off when battery is fully charged (does it have overcharge protection)? Where is the main pump suction port? What activates the back up pump? What is the horsepower of the backup pump. If the main pump fails can it be replaced by any pump?
by Darrel F from Illinois on August 16, 2016

A: The recommended battery is the Wayne WSB1275 - Maintenance Free AGM Backup Sump Pump Battery (75 Amps) for the Wayne WSS30V - 1/2 HP Combination Primary and Backup Sump Pump System, however most any 12V, deep cycle, maintenance free AGM battery will work in the 75 amp or 100AH (amp hour) rating. The oversize battery case (included) will accommodate a 12-volt SLA battery (up to a 27-frame size).
Be certain that the area around the batteries is well ventilated. Before servicing the batteries, blow away gasses by waving a piece of cardboard near the batteries.

The control box has a DC charger designed to shorten the recharging time of your battery, and to prevent overcharging. In addition, the control box has
a time delay which keeps the pump from repeated, short cycles when it shuts off. The time delay feature will allow the pump to run 20-25 seconds after the switch reaches the off position.

The main pump suction on this pump is actually just above the base where the line of square holes surround that bottom section of the pump. This is what's known as a top-suction and will help prevent clogging of debris that might normally clog a bottom suction pump.

The backup pump is activated by a separate float switch that is set to activate a few inches higher than the main pump float switch.

Since most backup pumps are operating on DC 12V power, they do not have any HP rating. Rather, they are rated in GPH (gallons per hour). The backup pump in this system can pump a healthy 2300GPH at a 10 foot head which rivals many standard 1/3HP 120V operated primary or main sump pumps.

If the main pump should fail, it is recommended that you replace it with another Wayne CDU800 - 1/2 HP Cast Iron Submersible Sump Pump w/ Vertical Float Switch since all the piping and included check valve is already setup for that pump.
Of course, if you should decide to go with another pump, you could always separate the two pumps at a later date and go with the pump of your preference.

I would also suggest reading the WSS30V INSTALLATION MANUAL for more information on how this system operates and is installed.
If you have any other questions, please let me know.
by Jim, Product Expert
Q: If either pump should ever fail, can they be replaced in the unit? Or does the whole unit needed to be replaced?
by Chris M from New York on January 05, 2016

A: The pumps and components can be replaced HOWEVER, you would need to contact Wayne tech support for replacement of the backup pump or controller. The main pump can be replaced with the Wayne CDU800 - 1/2 HP Cast Iron Submersible Sump Pump w/ Vertical Float Switch.
by Jim, Product Expert
Q: Jim. I have a 11 inch basin size. I am interested in a combination primary and back up sump system. What do you recommend. Price is not an issue. I am interested in Zoeller, Liberty, or Wayne or whatever you recommend. I dont think I can jackhammer out the basin if I had to, although I would love to.
by Vito Ranieri from Pennsylvania on June 21, 2015

A: Thank you for contacting Sump Pumps Direct.

Here is what I found.

Basement Watchdog

10 Inch minimum basin needed.

Myers Pump

10 Inch minimum basin needed.

Thank you
by Jim, Product Expert
Q: How does the system determines that the primary pump is not keeping up? By water level? running time of the primary?

Also, if the primary fails/breaks does the backup kicks in?

Thanks

by Edgardo from Pennsylvania on May 17, 2014

A: Thank you for your interest in Sump Pumps Direct. Each pump has it's own float switch. The float switch for the battery backup pump is set a few inches higher than the float switch for the main pump. When the main or primary pump is having difficulty keeping up with demand, the water level will rise higher insider your sump basin, thus setting off the secondary or battery backup pump to assist. This process will take place whenever you have AC power available to the system. In the event of a power outage, the battery backup pump, will obviously be your only working pump.
by Jim, Product Expert
Q: Hi, could you tell me what the diameter and depth of the sump basin needs to be for the Wayne WSS30V - 1/2 HP Combination Primary and Backup Sump Pump System?

Thanks.

by Erica from New York on February 26, 2014

A: The Wayne WSS30V requires a minimum basin size of 15"W X 22"D.
by Jim, Product Expert
Q: Which is better, a battery back-up system or a water back-up system?
by Linda L from Kentucky on February 06, 2014

A: Depending on the water table in your area and the potential for flooding you could go either way. If your water removal needs are below average, you could elect to go with a low GPH rated battery backup sump pump or water powered backup. Please note that water powered systems will only work with a minimum of 20-40 PSI. They will not work if you draw your water from a well. The typical water powered system would provide between 300-1000GPH of pumping capacity. If you're in a little higher water table that the flooding potential is a bit higher, you may want to consider a battery backup system rated at between 1000-2300GPH. If the flooding potential and water table are very high, you might look at the systems rated at 2400GPM and higher. You should also check with your local municipality to make sure that they are allowed as some municipalities have outlawed them as they do waste water in a sense.
by Jim, Product Expert
Q: If the 120 v pump can't keep up it sounds as if the battery backup pump will kick in---but the units share a common pipe so how can you add water /flow to an already maxed out pipe?? Would this not just increase head pressure on the battery pump causing it to work even harder????
by Mark F from Wisconsin on April 10, 2013

A: Thank you for visiting Sump Pumps Direct. You bring up a very good and important point, Mark! Most primary (1/4HP - 1/2HP) and battery backup pumps discharge to a 1-1/2" discharge pipe and will be installed separately but due to the discharge system already in place, be piped or "Y'd" together. In MOST cases, the total pumping capacity by both pumps at the same time will be handled by that 1-1/2" discharge pipe and will not cause any extra stress or back-pressure on those pumps. That being said, for optimum performance of both pumps, they should be connected to separate discharge pipes. Again, that is not always possible. In cases of extreme high water tables and frequent possible flooding where high capacity pumps are required, you should definitely run a separate discharge pipe for each pump you have installed.
by Jim, Product Expert
Q: I'm looking to purchase the Wayne WSS30V Combo. The specs say there is a check valve in the unit. Can I still use the Watchdog Klunkless Check Valve as well?
by Tim L from Wisconsin on July 30, 2012

A: Typically, you only want to use a single check valve for each pump so I would recommend just sticking with the check valves that are included with the Wayne system.
by Jim, Product Expert
Q: Is this Wayne WSS30V - 1/2 HP Combination Primary and Backup Sump Pump System an AC/DC system or a DC system?

Also please let me know if I have this straight. An AC/DC system means that the backup pump can be called into use if the main system is overloaded. In a DC system the backup pump only gets called into service if there is a power failure on the first.

by Bryce Brunswig from Nebraska on April 29, 2012

A: The Wayne model WSS30V is a combination primary sump pump and battery backup sump pump. The primary pump will operate on 120 volts and the battery backup pump operates on 12 volts from the battery that is installed along with the system and will operate when there is a loss of power. The battery backup pump will also operate in the event the primary pump cannot handle the incoming water, but will operate using the battery power and NOT 120 volts.
by Jim, Product Expert
Wayne WSS30V Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
Pros
Quiet (16)
Easy To Use (11)
High Quality (10)
I'd Buy It Again (8)
Reliable (7)
Cons
Bad Instructions (4)
None (2)
Lacks Ability To Increas... (1)
Packaging (1)
Little Pricey (1)
100% of respondents would recommend this product to a friend
60 Reviews  Sort by 
 
Richard
Taylors, SC
Purchased from Sump Pumps Direct
Purchased 11/8/15
Most Helpful Positive Review
REVIEWED
DEC.
01
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Easy To Install & Quiet
I chose this product after a mechanical failure during hurricane Joaquin brought a ton of water and caused basement flooding while we were on vacation. Knowing I have battery backup and a secondary pump in case of significant water help relieve the anxiety as we remodel the basement.

The unit is super quiet compared to the Wayne 1/2 HP pump it replaced and can no longer be heard through the floor during heavy rains. The directions are poor but after enough review reading It was very easy to... more
Richard Recommends This Wayne Product
Richard's Experience With Sump Pumps Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Contacted sump pumps direct for a variety of questions that they answered quickly. I am happy so far with my decision for the product and the provider. Thanks guys."
 more
Was this review helpful?
30
Swanson Hauling & Excavating Llc
Purchased from Sump Pumps Direct
Purchased 9/1/16
REVIEWED
SEP.
26
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Solid Purchase
Simple to replace old unit, ( little discharge adjustment). Fits in My 18" pump basin. Anything I can do to insure the dryness in my finished basement because I can't rely on REMC. And the good reviews of this unit help.
Pros: Quiet, Fast, Only Time Will Tell About The Quality
Swanson Recommends This Wayne Product
Was this review helpful?
00
Ron W.
Bettendorf, IA
Purchased from Sump Pumps Direct
Purchased 8/30/16
Total Reviews
4 Reviews
Total Helpful Votes
32 Helpful Votes
REVIEWED
SEP.
23
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Easy To Install
I decided to a add battery back up sump pump. As my main pump was 6 years old I made the decision to purchase a complete unit. Very easy to install. I was able to reuse my main pipe as both main and backup pumps were plumbed together. When I tested pump it is very quiet....
Ron Recommends This Wayne Product
Was this review helpful?
00
Curt Y.
Derby, KS
Purchased from Sump Pumps Direct
Purchased 8/24/16
REVIEWED
SEP.
15
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Works Great - Short Power Cord Very Dissapointing
So far it has worked extremely well. Have not had any power outages so no experience with the backup pump yet.

The primary pump is extremely quiet.

Be aware that the alarm warning that the small pump has kicked on is relatively low volume and runs for a very short time. As far as I can tell there is no adjustment available for volume or duration.

I can't understand why a system that costs this much has such a short power cord. Even the piece of junk pump I replaced had an 8 foot... more
Curt Recommends This Wayne Product
Curt's Experience With Sump Pumps Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Super pre-sales technical support. Shipped really fast!"
 more
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00
William G.
Ellicott City, MD
Purchased from Sump Pumps Direct
Purchased 7/25/16
REVIEWED
AUG.
16
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Fast Install
Prefab unit is a breeze to install. A great feature is the check valves are factory installed and instructions are clear. Homeowners should have no problem with install with simple hand tools. Would buy again.
William Recommends This Wayne Product
Was this review helpful?
10
Thomas B.
Delaware, OH
Purchased from Sump Pumps Direct
Purchased 6/23/16
REVIEWED
JUL.
19
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Really A Nice, Easy Set-up
It took me a whole 45 minutes to take out my old pump and put in this new wayne. I would recommend this to anyone looking for a good back up system.
Thomas Recommends This Wayne Product
Was this review helpful?
10
Charles L.
Ann Arbor, MI
Purchased from Sump Pumps Direct
Purchased 8/2/16
REVIEWED
AUG.
25
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Working Great!
Received my new sump pump system on time and in great condition. Installation was easy and fit into the spot of the old system with no problem. The pump itself is much quieter than my old one, and I had to check to be sure it was even running during our last heavy rain. So far, so good!
Charles Recommends This Wayne Product
Was this review helpful?
00
Randall L.
Wichita, KS
Purchased from Sump Pumps Direct
Purchased 7/24/16
REVIEWED
AUG.
16
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
It Is That Good
I just replaced an 11 yr old, noisy but still working sump pump. The old pump would wake us up out of a sound sleep. This new pump installed in about 20 minutes. I tested it with 5 gallons of water and could not hear it run and I thought oh no. But as I looked, the water was gone. The battery backup was just as quiet. I demonstrated the pumps ability to my wife and she said it s not running. I again had to show her how the water had disappeared. No longer do I have to run outside and fire up... more
Randall Recommends This Wayne Product
Randall's Experience With Sump Pumps Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Already have shared my experience. I believe you had two more sales of this same system because of my experience."
 more
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00
Mike L.
Pleasant Plains, IL
Purchased from Sump Pumps Direct
Purchased 7/18/16
REVIEWED
AUG.
09
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
New Pump / Backup
Ordered this new. Installed easy, and has yet to run from rain, but tested it and worked perfect . Bring on the rain and kill the power! I'm not scared!
Mike Recommends This Wayne Product
Mike's Experience With Sump Pumps Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Had to pay Illinois tax, Booooo."
 more
Was this review helpful?
00
Mike V.
Howard Lake, MN
Purchased from Sump Pumps Direct
Purchased 6/11/16
REVIEWED
JUL.
05
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Went In Easy & Works As Advertised
The sump pumps dropped in after glueing in the 1.5" exhaust pipe. Checked both the AC and battery backup pumps (by unplugging AC pump and filling basket with hose) and although a little slower, the battery backup pump has pretty good flow. Only two small gripes. The manual wasn't real clear on whether you need an external backflow valve, but you definitely do. I reused my old one. And the other is the wire length for the DC setup. It could stand to be a couple feet longer. Not... more
Pros: Quiet, Easy To Use, I'd Buy It Again
Cons: Bad Instructions
Mike Recommends This Wayne Product
Was this review helpful?
00
Pradeep P.
York, PA
Purchased from Sump Pumps Direct
Purchased 6/5/16
REVIEWED
JUN.
30
2016
4 out of 54 out of 54 out of 54 out of 54 out of 5
Great Sump Pump
I am happy with the system. Easy to install. Check valve is already installed.
Pradeep Recommends This Wayne Product
Pradeep's Experience With Sump Pumps Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Great service. Product arrived within three days. I had question about installation, question answered within few hours."
 more
Was this review helpful?
00
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