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Water-Powered Backup Sump Pumps
WP1/RB750, WP2/HB1000, WP3/CB1500

Size 2 Large Residential Water Powered Backup Sump Pumps

Basementsaver WP2 & Basepump HB1000 are advanced Size 2 water powered backup sump pumps that are designed to pump 950-1,400gph (using 40-90psi city water pressure) for application in large residential basements with higher flow rates. The Size 2 pump range includes: Basementsaver WP2, WP2-EZ, WP2-EZ-V, WPA2 and Basepump HB1000, HB1000-EZ, HB1000-EZ-V, HB1000-AVB.

Large Residential “Size 2” Pump Models

The Basementsaver WP2 and the Basepump HB1000 are exactly identical Size 2 pump units, assembled with identical components, on the same Basepump production line, in Buffalo, NY. These pumps represent the most advanced water powered sump pump technology currently available, and are each available with 4 model variants:


Basepump HB1000 Water Powered Sump Pump
Basementsaver WP2 / Basepump HB1000 Size 2 Large Residential Backup Sump Pump Is Designed For Large Residential Basements With Higher Sump Flow Rates

Size 2 Large Pumps

The Basementsaver WP2 / Basepump HB1000 is the large residential water powered backup pump model, providing 1,400gph maximum pumping capacity through a 10ft lift at 90psi city water pressure.

This size of pump is designed for application in large residential basements, with higher sump flow rates, that can provide a city water supply at a pressure in the range 40-90psi.

The WP2 / HB1000 pump will operate in your basement if your outside standard hose spigot can supply water at a sufficient flow rate to fill a bucket to the 5 gallon level in 30 seconds or less (allow 25% longer for a frost-proof spigot).


Basepump HB1000-PRO Water Powered Sump Pump Assembly
PRO Models Include A Dual Check Valve & Easy-Fit Fittings

Size 2 Large Residential DCV Easy-Fit Pumps

The Basementsaver WP2-PRO / Basepump HB1000-PRO is a WP2 / HB1000 pump unit that comes with comes with Additional 3/4″ Fittings including:

  • A brass ball valve to open/shut-off the water supply
  • An integrated brass Dual Check Valve (DCV), ASSE 1024 listed and CSA B64.6 certified for backflow prevention, in order to satisfy most local plumbing department codes
  • A set of brass easy-fit push connectors to dramatically simplify water supply line installation


Basepump HB1000-PRO-V Water Powered Sump Pump Brass Assembly
PRO-V Models Include A Vented Dual Check Valve As Approved For Use In Illinois

Size 2 Large Residential Vented DCV Easy-Fit Pumps

The Basementsaver WP2-EZ-V / Basepump HB1000-PROV-V is a WP2 / HB1000 pump unit that comes with Additional 3/4″ Fittings including:

  • The same brass ball valve and brass Easy-Fit push connectors that are fitted to the PRO models
  • A Vented brass Dual Check Valve (ASSE 1012 listed and CSA B64.3 certified), as approved for backflow prevention by plumbing departments in the State Of Illinois (#890-1140(k)).


Basepump HB1000-AVB Pump With ASSE 1001 Atmospheric Vacuum Breaker (AVB)
AVB Models Must Be Installed With A Dedicated Discharge

Size 2 AVB Pumps

The Basementsaver WPA2 / Basepump HB1000-AVB is a WP2 / HB1000 pump unit that comes with an integrated brass Atmospheric Vacuum Breaker (AVB), ASSE 1001 listed, CSA 64.1.1 certified and IAPMO listed, mounted on the downstream side of the backup pump main control valve.

This model is required for installations in the following states:

  • Indiana (Approval#608.3)
  • Minnesota(Approval#603.5.9)
  • Ohio (Approval#608.3)
  • Wisconsin (Approval#20100389)

The integrated AVB requires that this backup pump model must be installed on a dedicated discharge line. It must not be used when the backup pump is required to share the same discharge pipe as the primary sump pump.


Lower & Higher Capacity Water Powered Sump Pumps

If you require a lower or higher pumping capacity, we also offer:

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If You Ever Need Help Just e-mail Basementsaver Or Call 716.775.0206