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Installation • Maintenance 4
For parts or assistance, call Simer Customer Service at 1-800-468-7867
Plug in the Pump
AFTER the pump is completely installed, plug the switch
into a GFCI-protected, properly grounded outlet. Plug the
pump into the back of the switch’s plug.
Adjusting The Flow
The drain pump can pump up to 27 gallons per minute
(GPM). Normal sink drains allow only 5 to 6 GPM to
flow. Adjust the discharge shut-off/flow balancing valve
as follows so that the pump does not cycle on and off
when the faucets are on full.
1. Run water into the sink. The pump will start when it
detects water.
2. Check for leaks. If leaks are found, unplug the pump
power cord and fix the leaks before proceeding.
3. Put a stopper in the drain and allow the sink to fill
up a few inches.
4. Open the discharge shut-off valve, open the faucets,
and remove the stopper to drain the sink.
5. The pump will start. Adjust the discharge shut-
off/flow balancing valve until the pump runs
continuously while the faucets are running and
the sink is draining. If the water level rises with
the pump on, slightly open the discharge valve
to balance the flow. If it drops, slightly close the
discharge valve.
Washing Machine Use
Washing machines usually discharge more water than
the faucets do, and it is normal for the water level to rise
in the sink while the pump is discharging. Do not adjust
the discharge valve to match the flow w hen the washing
machine discharges into it, unless the sink is ONLY used
for washing machine discharge.
NOTICE:
Washing machine discharge water contains fiber
and lint. Unfiltered washing machine discharge could plug
the pump and require pump disassembly for cleaning.
To avoid this, install a lint trap or bag type filter in the
washing machine discharge line and clean it regularly.
Maintenance
This pump requires very little maintenance and should
provide a long service life. Problems are rare; when the
pump flow drops off, the most likely cause is something
solid going down the drain and jamming the impeller.
To clear a jammed impeller:
1. Disconnect the pump from power.
2. Close the discharge shutoff valve.
3. Bail out the sink as much as possible.
4. Disconnect the union, unscrew the pump from the
sink tail piece, lower the pump to the floor, and slide
it out from under the sink (see Figure 3).
5. Remove the six housing screws (see Figure 4).
6. Clean out the pump. Make sure that the pump
discharge is clear. If necessary, replace the impeller.
7. Install the new gasket (included with impeller).
Reassemble the pump.
8. Raise the pump back into position, thread it back
onto the sink tail piece, and reconnect the union.
9. Plug in the pump. Run water in the sink until the
pump has run at least one complete cycle to make
sure the pump is operating correctly and there are
noleaks
Figure 4: Remove 6 housing screws to clean out pump
Figure 3: Pump removal
1-1/4” Union
Half
1-1/4” Union Half
Screen
Check Valve
Laundry
Sink
Discharge Pipe
Pump
†
For easier removal for servicing or cleaning,
install a 1-1/2” solvent union in the drop pipe.
Shut-Off/Flow-
Balancing Valve
1-1/2” PVC
†
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