
7
FP979 (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.
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.
*
Supplied with the Battery Backup System.
Items in italics must be purchased separately