Product Manual
Installation 4
Figure 2: Typical installation with separate
discharge pipes.
Figure 3: Typical installation with common
discharge pipe.
Common Discharge
NO
TICE: In this installation, if the Primary Sump Pump (PSP) does not
ha
ve a check valve installed below the wye, you MUST install a check
va
lve for the PSP as shown. This prevents backflow of water into the
sump from the Batter Backup Unit
. Check Valve Flapper(s) must swing
AW
AY and flow arrow(s) must point AWAY from the pump being protecte
d.
The water lev
el when the switch shuts off must be above must be above the
BBU pump intak
e.
Ty
pical installation,
assembled
.
Not to scale.
Wiring omited for clarity.
* Supplied with the Battery Backup Unit.
Intems in italics must be purchased separately.
Both check v
alves
must be installed
on the pump side
of the
wye.
1-1/2” PVC Upper
Discharge Pipe
(cut to fit)
U74-68 Hose and
Clamp Assembly
1-1/2” PVC Riser Pipe
(cut to fit)
45 degree Slip Wye
Optional 1-1/2”
PVC Pipe (cut to fit)
45 degee
slip elbow
Battery Backup
Switch*
Alternate Wye/Elbow
Setup










