Glentronics The Basement Watchdog Special Instruction Manual & Safety Warnings page 8

Pump & Pipe
Installation Instructions
INSTALLATION D:
CONNECTION TO EXISTING DISCHARGE PIPE
FOR NARROW SUMP PITS
(Diagram D)
Depending on your installation requirements, PVC
pipe lengths will vary. Cut the pipes and assemble
them as shown in photo #8. Do not cement them
together until you are sure they are cut to the
correct lengths. It is important to keep the
discharge pipes on both pumps parallel to each
other, so that the pumps remain flat on the floor
of the sump. More detailed instructions follow.
DANGER
!
Unplug the main AC pump when installing
the backup pump to avoid electric shock.
Failure to do so could cause serious injury or
death.
1. Attach an "L" bracket to the discharge pipe of
"L"
BRACKET
2a
1
4
5
Page 7
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 and pushing down. There are holes
suitable for mounting on the bottom of the
strainer. (b) Using the #8-32 x ¾" stainless
screw, washer and nut, attach the strainer to
the "L" bracket. (c) Once the strainer is
attached, simply press the rest of the pump
onto the mounted strainer.
3. Secure the pump wire so that the plug on the
end will not fall into the sump. Attach the
wire to the pipe with a piece of tape.
4. Cut a piece of 1½" rigid PVC pipe long enough
to reach from the elbow on the backup pump
to one (1) foot above the floor. Prime and
cement it to the 1½" pipe adapter, then screw
the adapter into the pump.
2b 2c
6 7
5. Install a check valve on the top of the PVC
pipe attached to the Basement Watchdog
pump. Make sure it is installed with the arrow
pointing up or it will not prevent the backflow
of water.
CAUTION
6. When a check valve is used, a 1/8" hole
must be drilled in the PVC pipe above the
Basement Watchdog pump. Make sure it is
above the water line and below the check
valve. Drill the hole at a 45º 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 operating, and
the basement will flood.
7. If there is no check valve on the discharge
pipe of the main AC pump, one must be
installed at this time. Cut the discharge pipe
approximately one (1) foot above the floor.
Install a check valve on the pipe and tighten
the bottom hose clamp. Now prime and
cement a small piece of 1½" PVC pipe to the
3
8
bottom of a "Y" connector. Prime and cement
the top of the "Y" assembly to the discharge
pipe with the "Y" extension facing down
toward the backup pump. Now connect the
bottom of the assembly to the check valve and
tighten the hose clamp.
8. Connect a piece of 1½" PVC pipe above the
check valve of the Basement Watchdog pump,
and attach a 45° elbow to that pipe. Extend
another piece of pipe to reach from the 45°
elbow to the "Y" connector on the other pipe.
9. Prime and cement all pipe connections
securely to prevent leaking, and tighten all
the hose clamps.
FLOOR
JOIST
RIGID
1-1/2"
PVC PIPE
RIGID
1-1/2"
"Y"
PVC PIPE
CONNECTOR
45º ELBOW
CHECK
CHECK VALVE
VALVE
PUMP WIRE
1/8" HOLE
DRAIN TILE
PIPE ADAPTER
BASEMENT
HOSE CLAMPS
WATCHDOG
PUMP
MAIN
"L" BRACKET
AC PUMP
Diagram D