Pump & pipe installation instructions, Diagram bb – Basement Watchdog Emergency User Manual
Page 7

Pump & Pipe
Installation Instructions
(Hookup to Existing Discharge Pipe)
METHOD Bb: HOOKUP TO AN
EXISTING DISCHARGE PIPE
FOR NARROW SUMP PITS
(Diagram Bb)
1.
Attach an "L" bracket to the
discharge pipe of the main AC
pump with two (2) stainless steel
hose clamps. Position the bracket
so the bottom of the "L" is just
above the top of the main pump,
and out of the way of any float
switch on the main pump.
2.
(a) Remove the black bottom
strainer of the pump by pressing in
the two tabs on the strainer. There
are holes suitable for mounting on
the bottom of the strainer. (b) Using
a #8-32x
3
/
4
" stainless screw,
washer and nut, attach the strainer
to the "L" bracket.
(c) Once the
strainer is attached, simply press
the pump body onto the mounted
strainer.
3.
Cut a three-foot (3’) piece of 1
1
/
2
"
rigid PVC pipe and cement it to the
threaded fitting that is attached to
the elbow on the pump.
4.
(a) Install a check valve on the PVC
pipe attached to the Emergency
pump. (b) IMPORTANT: WHEN A
CHECK VALVE IS USED, DRILL A
1
/
8
" HOLE IN THE 1
1
/
2
" PVC PIPE
THREE INCHES (3") ABOVE THE
CONNECTION TO THE EMER-
GENCY PUMP. Drill the hole at a 45˚
angle toward the bottom of the sump
to avoid splashing water outside the
sump pit. If a
1
/
8
" hole is not drilled
above the pump, an air lock may
prevent the pump from pumping.
5.
If there is no check valve on the
pipe of the main AC pump, one
must be installed at this time. Then
install a "Y" connector above the
check valve on the discharge pipe
for the main AC pump.
6.
Secure the pump wire so that the
plug on the end will not fall into the
sump. Attach the wire to the pipe
with tape.
7.
Connect a 1
1
/
2
" diameter discharge
pipe above the check valve of the
Emergency pump, and attach a 45˚
elbow to that pipe. Extend another
piece of pipe to reach the "Y"
connector you have inserted above
the check valve on the discharge
pipe of the main pump.
8.
Cement or clamp all connections
securely to prevent leaking.
Page 6
3
5
1
6
7
4a
4b
2a
2b
2c
Diagram Bb
PUMP
WIRE
HOSE CLAMPS
PIPE ADAPTER
EMERGENCY PUMP
"L" BRACKET
FLOOR
JOIST
MAIN AC PUMP
RIGID
1-1/2"
PVC PIPE
CHECK
VALVE
RIGID
1-1/2"
PVC PIPE
DRAIN TILE
45
°
ELBOW
"Y" CONNECTOR
CHECK
VALVE
1/8" HOLE
“L”
BRACKET