Installation
Discharge
Pipe
Hose
Coupling
and Clamps
2" Minimum
Tee
Short length of
discharge pipe
(length may vary)
1-1/2"x1-1/2"
Required
Slip Coupling
if a check
Auxiliary
valve is
Check Valve
not already
installed
1-1/2"x1-1/2"
on pump
Slip Coupling
Figure 4 - Back-up pump float switch
METHOD B
1. Make a second cut in the discharge pipe at the
pencil mark made in step 1 and set the cut-off piece
of discharge pipe aside. See Figure 5.
2. Wrap the threads of the close nipple counterclock-
wise with 2 turns of PTFE pipe thread sealant tape
and set aside.
NOTICE: There must be a check valve installed in the
Primary Sump Pump discharge between the tee and
the Primary Sump Pump. This will prevent recircula-
tion into the Primary Pump when the Back Up Sump
Pump comes on. See Figure 5.
3. Thread the check valve onto the backup pump. Make
sure the check flap hinge is up and the flap swings
away from the pump.
4. Thread the close pipe nipple into the check valve
and pump assembly.
5. Thread the close nipple into the tee.
6. Repeat Steps 11, 12 and 13 above
Cable Ties
1-1/4 x 1-1/2"
Reducers
bushings
(if required)
To the
back-up
pump
discharge
pipe.
Primary
Check
valve
Sump Pump
Discharge Pipe
6979 0515
Discharge
Pipe
Hose
Coupling
and Clamps
2" Minimum
Tee
Short length of
discharge pipe
(length may vary)
Required if
1-1/2"x1-1/2"
a check
Slip Coupling
valve is not
Auxiliary
already
Check Valve
installed
on pump
1-1/2"x1-1/2"
Slip Coupling
Figure 5 – Method B – Make the second cut for
installation of the backup pump and check valve
assembly. Install the backup pump. Your installation may
not require the reducer bushings.
Hose Coupling
with Clamps
7" Min.
(178mm)
Figure 6 – Double pump and float switch installation
Cable Ties
Long End Faces
Pump, Short End
Faces Tee
Close
Nipple
Backup
Sump
Pump
Check
Primary Sump
valve
Pump Discharge
Pipe
6979 0515
Grounded
Electrical
Outlet
12" Min.
(305mm)
Coupling/
Check Valve
Assembly
Check
Valve
6980 1016
5