Expert Recommended AccessoriesSelected by Jim, our Expert
Required Accessories9
These accessories are required to properly setup/install this product.
Optional Accessories10
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
Product QuestionsAnswered by Jim, the Sump Pump Expert
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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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.
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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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