Basement Watchdog Big Dog - Manual (Page 6)

Page 5
Pump & Pipe
Installation Instructions
(Hookup to Existing Discharge Pipe)
If the direct discharge method (Method
A) is not possible, the Basement
Watchdog A/C-D/C Sump Pump System
can be hooked up to the same pipe as
your AC sump pump by installing a "Y"
connector and two check valves.
Check your local plumbing codes. Some
municipalities prohibit the discharge of
sump water into the sewer system.
If you have a sump pit wide enough to
place the backup pump next to the main
pump, use Method B. If your sump pit is
too narrow, the pump may be mounted
above the main pump. In this instance
use the instructions for Method Bb.
METHOD B: HOOKUP TO AN
EXISTING DISCHARGE PIPE
(Diagram B)
1. Cut a four-foot (4’) piece of 1 1 /
2
"
rigid PVC pipe and cement it to the
threaded fitting that is attached to
the elbow on the pump.
2. (a) Install a check valve on the PVC
pipe attached to the Basement
Watchdog 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 BASEMENT WATCHDOG
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.
3. 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.
4. 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.
5. Place the pump with the 4’ PVC
pipe attachment on the bottom of
the sump floor, next to the main AC
pump. Do not mount the pump to
any existing pipes...it should be
placed on the floor of the sump.
A
brick may be placed under the
pump if there are rocks or other
debris on the sump floor.
6. Connect a 1 1 / 2 " diameter discharge
pipe above the check valve of the
Basement Watchdog sump 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.
7. Cement or clamp all connections
securely to prevent leaking.
PUMP
WIRE
PIPE ADAPTER
BASEMENT WATCHDOG
PUMP
FLOOR
JOIST
MAIN AC PUMP
RIGID
1-1/2"
PVC PIPE
CHECK
VALVE
DRAIN TILE
1/8" HOLE
45 ° ELBOW
"Y" CONNECTOR
CHECK
VALVE
3
4 5 6
1
2a 2b
Diagram B