Base Products Corporation www.basepump.com 800 554 1426
page 3
Models: RB750, HB1000, CB1500 Copyright by Base Products Corporation 2015 Rev. May/2015
General Specifications
READ all instructions BEFORE installing this pump. The average pumping capacity of this pump may vary depending on
your municipal water supply, pressure, piping, head pressure, and any restrictions that may exist in your piping. These
instructions are for installations in a broad range of applications. You may have a unique situation that requires greater
expertise than we are able to give you in these instructions, or you may require the services of a professional plumber.
Additional supplies needed
Water supply pipe and fittings, (Copper, PEX, or CPVC) typically a "T", a couple 90º elbows, and enough pipe to connect your
existing water supply to the inlet fitting of the pump.
Full Flow "Ball" or "Gate" Valve; Union fitting; Female adapter to connect to threaded male fitting on pump.
PVC primer/cleaner and cement (small cans) and pipe thread sealant or tape.
10 Foot Length PVC pipe: (more, if needed to fit your application; see pages 4-6).
Suction and Discharge pipe sizes:
RB750: 1" HB1000: 1-
1/4” CB1500: 1-1/2”
Water Supply Pipe Sizes: RB750: ½” or ¾" HB1000: ¾" CB1500: ¾" or 1”
Tools Needed
Electric or cordless drill with screwdriver bits and hole saw attachment for drilling through house wall:
RB750: 1½" HB1000: 1¾" CB1500 2
”.
Phillips and Slotted Screwdrivers; Utility Knife; Tape Measure; Short Level.
Plumbing tools for water supply pipe as needed: torch, tubing cutter, solder, flux, pipe cleaning cloth, etc.
Product Specifications
Materials: Heavy-duty Schedule 80 Polypropylene, Stainless steel hardware, PVC Schedule 40 fittings
Dimensions:
RB750:
Length: 14½"
Width: 4” Height: 10” Weight: 1.5 lb.
HB1000:
Length: 15½"
Width: 4”
Height: 10”
Weight: 2 lb.
CB1500:
Length: 16"
Width: 6”
Height: 10”
Weight: 3 lb.
Water inlet fitting: RB750: ½" or ¾" Male threaded
Suction and Discharge Opening: 1” socket
HB1000: ¾" Male threaded Suction and Discharge Opening: 1-
1/4” socket
CB1500:
1” or ¾” Male threaded Suction and Discharge Opening: 1-1/2” socket
Water service requirements: Minimum pressure: 40 lb. PSI Maximum pressure: 90 lb. PSI
Minimum City Water Flow Rate: RB750: 7 GPM HB1000: 10 GPM CB1500: 15 GPM
Back-flow Prevention
Check with your local plumbing or water department for their requirements regarding back-flow prevention if you have any questions.
Installation of an approved back-flow prevention device will cause little or no problem for this pump, but a reduction of pumping capacity
may occur (usually less than 10%). However, some of these devices, such as RPZ backflow devices, are more restrictive than others,
may affect published pumping rates at a greater rate, and also require annual inspections.
WARNING:
Sump water can contain high levels of dangerous contaminants, including sewage. To reduce the risk of
contamination of the potable water supply, this pump must be installed with a listed backflow prevention device suitable
for the installation, in accordance with the local plumbing code, such as a reduced pressure zone backflow preventer
(RPZ). Alternatively, consult the local plumbing and health codes or the authority having jurisdiction for guidance on cross
‐
connection and backflow protection requirements.
Installation Notice
Basepump is designed to be discharged independently outdoors, separate from your primary sump pump discharge pipe
(See page 4 for details). However circumstances may make it necessary to discharge the water indoors, by connecting
into the primary sump pump pipe. Reasons why you should install the discharge separately outdoors:
Your primary sump pump discharge pipe MUST have a check valve installed. If this check valve fails, then the
Basepump will send water back down into the sump and the basement will flood.
If your primary sump pump discharge pipe ever becomes clogged or frozen outside, then the Basepump will also not
be able to operate and the basement will flood.
The Unified Plumbing Code (UPC) prohibits the discharge of a water powered pump into the primary discharge pipe.
