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Liberty SJ10 Sumpjet Water-powered Back-up Pump

SKU: 72182

Was: $ 172.90/ ea
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Retail: $247.00

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About the Liberty SJ10

The Liberty SJ10 Sumpjet Water-Powered Back-up Pump makes sure that your basement is kept dry during power outages. It comes with an indoor alarm that runs at 115V with a 9V back-up battery. It is powered by the municipal water supply so it does not require electricity to operate. However, the SJ10 requires an uninterrupted water source to operate. If you have a well pump, the SJ10 will not operate during power outages. This factory pre-assembled pump has a discharge size of 1-1/2" NPT and comes with a diaphragm switch for automatic water flow capabilities. The pump's performance data and other details are available in the specification sheets. The Liberty SJ10 is fully automatic yet compact. It is equipped with a ¾" Sharkbite water inlet connection, and includes an adjustable stainless hose clamp for quick and easy mounting. This backup pump features a built-in backflow valve to prevent unwanted water from leaching back into the system, and can handle temperatures of up to 130 degrees F. Covered by a standard Limited Warranty for a period of 3 years, this product proudly bears the CSA mark and is recognized for meeting the required environmental performance standards. Liberty, the company that makes and innovates high quality pumps is relied on by hundreds of professional contractors each day. Liberty has been cited as one of Rochester's Top 100 Companies for more than a decade.

Product Details

Product: Sump
Manufacturer: Liberty Pumps
Mpn # SJ10
Weight 6.00 lbs.

Product Features

  • Accepts 20PSI up to 100PSI inlet supply pressure
  • Fully automatic
  • High-output flow rates
  • Compact design
  • Fully-assembled
  • 1-1/2 inch ischarge
  • Works off municipal water supply
  • 3/4 inch NPT water inlet connection
  • UPC approved (IAPMO PS 119-2005)
  • SHARKBITE inlet connection accepts pex, copper or CTS CPVC 3/4 inch line


4.5 out of 5 rating is our rating for PlumbersStock, we got that rating because we have lots of experience and great people with expertise in plumbing. BUT WE WANT YOUR HELP. This product doesn't have any reviews yet, and we don't want to write our own reviews. It is more valuable to us that the customers get to share their experience with our products. Please, if you have any experience with this product, take a moment to share and help someone else who is trying to make a decision. Thank you!

Questions & Answers


Good day! We appreciate your interest in our Liberty SJ10 Sumpjet Water-powered Back-up Pump. I need more details on your application for me to answer your question exactly. In the meantime, here is the literature on the Liberty Pumps, SumpJet backup water sump pump for you to check for more information. Thank you for shopping with – the perfect place to find high-quality products at low, low prices!


Hi! Thank you for posting a question under our Liberty SJ10 Sumpjet Water-powered Back-up Pump. Yes, it is new. Here at, we only sell brand new and unused items. To order this sumpjet water-powered back-up pump, just click "Add to Cart", put your zip code and you're ready to go. PlumbersStock is committed to giving you products with supreme quality at prices you deserve. Have a great day!


Thank you for asking help from the PlumbersStock team. Page 6 of this Installation Manual says that it is the height of this Liberty SJ10 SumpJet water-powered back up pump that should be adjusted so the float level will operate a few inches above the turn-on level of the existing primary sump pump. For more technical instructions, it would be best to contact the manufacturer at 1-800-543-2550. Thank you for visiting! (edited)

Anonymous responded:

You raise or lower the unit on the existing discharge pipe during installation of this init.


Good day! We appreciate that you're asking about our Liberty SJ10 Sumpjet Water-powered Back-up Pump. We apologize for the confusion. Updating product descriptions is an ongoing process. This Liberty SJ10 doesn't come with an alarm. The product that you're looking for is the Liberty SJ10A Water-powered Back-up Pump with an Alarm. Please refer to this Sales Literature for reference. We hope this helps. Purchase the Liberty SJ10A by going to its product page, then click the "Add to Cart" button, enter your zip code and you'll be all set. Thank you for visiting Happy shopping!

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