7
MY979 (06-08-20)
INSTALLATION
Figure 2: Separate Discharge - Typical Installation
NOTE:
Check valve flapper(s) must swing AWAY and flow arrow(s) must point AWAY from pump being protected.
* The water level when the switch shuts off must be above the BBU pump intake.
“Separate Discharge”
NOTICE:
Check Valve Flapper(s) must swing AWAY and flow arrow(s) must point
AWAY from pump being protected.
The water level when the switch shuts off must be above the BBU
pump intake.
*
Supplied with the Battery Backup System.
Items in italics must be purchased separately.
FL
OW
Slope DOWN
to outlet
Sill
FP0026-10
Check Valve
(Purchase
Separately)
PTFE pipe thread
sealant tape on all
threaded joints
1-1/2” PVC Riser Pipe
(cut to fit)
1-1/4” FNPTx1-1/2” Slip
Elbow*
Battery Back Up
Sump Pump*
Lower Discharge Pipe
1-1/2” PVC Pipe
(cut to fit)
Primary Sump Pump
Check Valve
Flow Arrow; Must point
AWAY from Pump
being Protected
1-1/2” PVC Upper
Discharge Pipe
(cut to fit)
Battery Backup
Switch*
If the sump is small,
hang the BBU from
the Primary discharge
pipe on an angle bracket.
Floor
Joist
U74-68 Hose and
Clamp Assembly
(Purchase Separately)
Drill 1/8” Anti-Airlock
Hole
6782 0313a
Not to scale.
Wiring omitted for clarity.
