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540 FLEX™


540 FLEX™

Backup Pump Systems

Water-powered, emergency backup sump pump system

540 Flex® Backup Sump Pump

When the power goes out or a sump pump fails, homeowners may be at risk of experiencing flooding. Instead of waiting for the electricity to return, your clients can use our backup pump for hassle-free operation when they need it most.

Zoeller Pump Company’s 540 Flex® backup pump is a high-performance water-powered system that effortlessly takes over when your primary pump fails or is unusable. With convenient horizontal or vertical installation in the rafters and a push-to-connect fitting, this product maintains a safe water line and offers the reassurance of a protected home.

The Support You Need During an Emergency

Homeowners understand that things can go wrong, and emergencies pop up. A power outage can cause sump pumps to be rendered unusable, exposing your clients to the risk of flooding. With the 540 Flex® as their backup sump pump, they’ll have the peace of mind that their home is protected. This emergency water-powered backup sump pump is easily used with any brand of sump pump and offers 24/7 protection, ensuring your clients are covered even at the most inconvenient times.

These nonelectric sump pump backups use a 1 1/4-inch suction pipe to create enough pressure to force water through a 1 1/2-inch discharge pipe, moving water outside the home. They are battery-less backup systems that use the pressure from the municipal water supply. Doing this allows the pump to expel two gallons for every gallon used.

Find Your 540 Flex® Backup Pump Distributor Today

These devices offer reliable and long-lasting use and are perfect as the second line of defense in any home. Our Zoeller Pump battery-less backup for sump pumps is just what homeowners need to rest assured that they’re in good hands when things go wrong.

Our 540 Flex® water-powered backup solutions are available to contractors interested in bringing their clients the highest level of comfort. Take a look at our Distributor Search to find out where you can get what your clients need! Call us at 800-928-7867 to learn more.

  • Horizontal OR Vertical installation capability allows FLEX™ to fit most sump applications
  • No electricity or batteries required
  • Municipal/city water pressure-powered system
  • Unit requires 3/4″ inlet line to operate properly
  • 1-1/4″ suction pipe required for maximum performance (field installed)
  • Removes up to 2 gallons for every gallon used
  • Flexible installation allows you to install the pump in the rafters keeping the water line safe and secure
  • No moving float rod which allows you to effectively seal the sump pit cover
  • Works during power failures
  • On guard 24 hours day
  • Helps eliminate flooding in basements
  • Can be used with any existing brand of sump pump
  • Small footprint – works in 18″ x 22″ (46 x 56 cm) pit
  • 1-1/2″ Discharge Piping connection
  • Efficient water usage
  • High capacity, high head
  • Includes push-to-connect supply fitting (field installed)
  • Engineered for trouble-free operation
  • Non-corrosive materials
  • Performs at operating pressures from 40 to 80 psi
  • Primary sump pump not included
  • 3 year limited warranty