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Pump & Pipe
Installation Instructions

INSTALLATION C:
DIRECT DISCHARGE TO THE OUTSIDE OF THE
BUILDING FOR NARROW SUMP PITS
(Diagram C)

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

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 of the backup pump
to (1) foot above the floor. Prime and cement
it to the 1½” pipe adapter, then screw the
adapter into the pump.

5. Attach a union or check valve to the top of

the 1½” PVC pipe. This will allow the pump
to be removed easily, should the need arise.

The path of the rest of the pipe and the details
of  each  installation  will  vary.    Using  sound
plumbing practices, route the discharge pipe to
an  exterior  wall  via  the  shortest  path  with  the
fewest  turns.    More  turns  will  reduce  the
pumping capacity.  The pipe section exiting the
building should be on a downward slope so that
the water in the pipe will exit outside instead of
returning to the sump pit.  Be sure to seal the
hole in the wall where the pipe exits, and prime
and cement or clamp all connections securely to
prevent  leaking.    When  directly  discharging  to
the  outside  of  the  building,  no  check  valve  is

required. However, a check valve will prevent
water from flowing back into the pit when the
pump has stopped.

If you use more than a total of 20 feet of pipe
in the installation (including vertical and
horizontal runs), install a check valve in place
of the union. Make sure it is installed with

the  arrow  pointing  up  or  it  will  not  prevent
the backflow of water.  When a check valve is
used, a 1/8” hole must be drilled in the PVC
pipe  above  the  Pro  Series  pump.    Drill  the
hole at a 45° angle toward the bottom of the
sump  to  avoid  splashing  water  outside  the
sump  pit.    Make  sure  the  hole  is  above  the
water  line,  and  below  the  check  valve.    If  a
hole is not drilled above the pump, an air lock
may prevent the pump from operating.

PUMP WIRE

CHECK
VALVE

HOSE
CLAMPS

"L" BRACKET

FLOOR

JOIST

MAIN

AC PUMP

SLOPE

PIPES

DOWN

RIGID