Installation
5
5. To separate the primary pump from the discharge pipe:
5A. For applications with hose couplings: remove
the coupling clamps with a nut driver.
5B. For applications without rubber couplings: cut
the PVC discharge pipe with a hacksaw above
the basement floor, at a comfortable level. New
rubber couplings are included for reassembly.
See Figure 1 on Page 4.
NOTICE:
The discharge pipe is filled with water.
Drain the water from the discharge pipe assembly.
Keep the work area dry.
Risk of pinching hands or fingers.
To
avoid a hand injury from a collapse of plumbing,
support the pipe above the separation before cutting
or disassembly. See Figure 1.
6. Lift the primary pump and discharge pipe assembly
out of the sump.
Risk of electrical shock.
Do not lift the
pump by the electrical cord; lift pump only by the
lifting ring, discharge pipe, or handle on the pump.
Lifting by the cord can damage the cord.
INSTALL BACKUP PUMP
There are two ways to install the Battery Back-up Pump.
Method A and Method B. See Figure 3 to determine
which method to use. Both methods are acceptable.
Method A
Method A suggests installing both of the pumps on the
floor of the sump pit. See Figure 4. The minimum required
sump basin diameter, at the bottom of the pit and the rec-
ommended depth of the sump basin is 18”.
Some additional materials you will need are 2 1-1/4” 90°
elbows and 2 1-1/4” close pipe nipples.
Figure 5 - Remove the pre-assembled check valve
Battery Back-up Pump comes
preassembled with the check
valve assembly installed on the
discharge.
Remove this check
valve assembly.
Elbow
Back-up Pump
Discharge
Tee
Check
Valve
Assembly
Close
Pipe
Nipple
(The valve
flap opens
away from the
pump outlet)
Water
Flow
through
valve
Figure 3 - Choose an installation method
Sump Pit Diameter
_
at base > 18"?
No
No
No
No
Yes
Yes
Yes
Yes
BBU System may still
be installed but the
sump pit may need
to be changed due
to size.
Method B
Sump Pit Depth
_
> 18"?
Sump Pit Diameter
_
at base > 13.5"?
Sump Pit Depth
_
> 22"?
Method A
Figure 4 - Method A installation diagram
Second Cut:
at Marked
Water Line
First Cut:
Backup Pump Installation
(Method A)
Not to Scale
Switches and
Wiring omitted
for clarity
1-1/2"x1-1/4"
Reducer
bushing
1-1/2"x1-1/4"
Reducer bushing
Tee
1-1/2"x 1-1/2"
slip x 1-1/4" FNPT
Short Length
of Discharge Pipe
(may vary)
Primary Sump
Pump Check Valve
to prevent
recirculation
into the sump.
Cut-Off piece of
discharge pipe.
Hose Coupling
with Clamps
1-1/4" Elbow
1-1/4"
Elbow
Close
Pipe
Nipple
(1-1/4"
x 1-1/4")
Back-up Pump
Discharge Port
Primary Pump
Discharge Port
(1 Nipple
is included
with the
back-up
pump
package)
Check Valve
Assembly
