How to Pick the Perfect Combination Sump Pump
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Liberty Pumps PC257-441 - 1/3 HP Combination Primary (257) & Battery Backup Sump Pump System
Model:
PC257-441
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Features
Style
Combo
GPH
3000 Gallons
Switch Type
Vertical
Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."
- Compact Sump Pump Combo System - Fits 15" Diameter x 18" Deep Pits & Larger
- Pre-assembled primary pump and battery backup system
- Fully Automatic Operation - Provides Uninterrupted Pumping
- Keeps the water moving during an outage or primary pump failure
- 1/3 HP Cast Iron Primary Pump w/ Vertical Float Switch (257)
- Rugged, energy efficient & thermally protected 1/3 HP motor
- UNI-BODY casting w/ epoxy coated power coat finish
- Magnetically operated vertical float switch
- High-Flow 12V Battery Back-Up Pumps Up to 2640 GPH @ 0' (441)
- Corrosion-resistant, thermoplastic construction
- Reliable vertical float switch independent of primary pump
- Advanced 5-Stage Charging System
- Outperforms 'trickle' chargers found on many backup systems
- Sophisticated algorithm continually tests charging process
- Audible Alarm & Light
- Advises of backup pump operation
- Easily Connects to 1-1/2" Discharge Line
- Includes primary and backup check valves
- Requires One Type 27 or 31 Marine Battery (Sold Separately)
- 3-Year Limited Warranty
- ***Note - Main Image Is System Example - 2nd Image Is Primary Pump Included***
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov
Specifications
PC257-441
Base
Min Sump Basin Size
15 Inch
Motor
Voltage
12 Volt DC/120 Volt AC
Thermal Protection
Yes
Power Cord Length
10 Feet
Oil Free Motor
No
Pump
Housing Material
Cast Iron
Solids Handling Size
.5 inch
Float Type
Vertical Float
GPH @ 0 feet
3000
GPH @ 5 feet
2700
GPH @ 10 feet
2250
GPH @ 15 feet
1560
GPH @ 20 feet
720
Backup GPH @ 0 feet
2640
Discharge Port Size
1-1/2 Inch
Built-in check Valve
Yes
Float On
7 Inches
Float Off
3.5 Inches
Manual Override
No
Backup GPH @ 5 feet
1920
Backup GPH @ 10 feet
1260
Backup GPH @ 15 feet
600
Engine
Horsepower
.33 hp
Overview
Weight
35 Pounds
Consumer Warranty
3 Years
UPC
671812118353
Reviews
(19)
Liberty Pumps PC257-441 Reviews & Ratings
Product Q&A
(3)
Product Questions
Answered by Jim, the Sump Pump Expert
Question
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Does this back up pump have similar specs to the Main 257 pump?
Zack T.
from Michigan
March 28, 2017
Answer
It's actually pretty close Zach. The main 257, 1/3HP pump is rated at 2250GPH at a 10 foot head lift while the 441 backup pump is rated at 1830GPH. In most cases, the backup pump will have a slightly lower pumping capacity than the main or primary pump. Also, since the backup pump is powered by 12 volts, the pumps are generally only rated in GPH capacity and not in HP.
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Question
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I'm confused about battery specification for this. Your site says not to use AGM battery, but Liberty's site says you can. Why the difference in advice? Thank you.
Dennis H
from Virginia
September 01, 2016
Answer
Liberty did recently upgrade the charger in this system so that it would be compatible with wet cell or acid base AGM batteries. I apologize for any confusion.
If you have any other questions, please let me know.
If you have any other questions, please let me know.
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Question
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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????
Mark F
from Wisconsin
April 10, 2013
Answer
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.
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Recommended Accessories
Expert Recommended Accessories
Selected by Jim, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
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Liberty Pumps PC257-441 - 1/3 HP Combination Primary (257) & Battery Backup Sump Pump System
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