STAR Water Systems STL001 User manual

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© 2021. All rights reserved.
Serial Number Purchase Date
Questions, problems, missing parts? Before returning to your retailer, call our customer
service department at 1-800-742-5044, 7:30 a.m. - 5:00 p.m., EST, Monday - Friday.
ATTACH YOUR RECEIPT HERE
UTILITY/LAUNDRY
SINK PUMP
MODEL #STL001
Español p. 11
SW1399 B

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© 2021. All rights reserved.
PACKAGE CONTENTS
SAFETY INFORMATION
WARNING
ITEM DESCRIPTION QUANTITY
A Pump 1
B Ball Valve 1
C Check Valve 1
D Strainer 1
Please read and understand this entire manual before attempting to assemble, operate or install the
product.
NOTE: Pumps with the “UL” Mark and pumps with the “US” mark are tested to UL Standard UL778.
CSA certied pumps are certied to CSA Standard C22.2 No. 108. (CUS.)
• Extension cords may not deliver sufficient voltage to the pump motor. Extension cords present a
life threatening hazard if the insulation becomes damaged or the connection ends fall into water.
The use of an extension cord to power this pump is not permitted.
• Secure the discharge line before starting the pump. An unsecured discharge line will whip,
possibly causing personal injury, and/or property damage.
• Ensure that the electrical circuit to the pump is protected by a 15 amp fuse or circuit breaker.
• Release all pressure and drain all water from the system before servicing any component.
• Wear safety goggles at all times when working with pumps.
• The unit is designed only for use on 115 volts (single phase), 60 Hz, and is equipped with an
approved 3-conductor cord and 3-prong grounded plug. Do not remove the ground pin under any
circumstances. The 3-prong plug must be directly inserted into a properly installed and grounded
3-prong, grounding-type receptacle. Do not use this pump with a 2-prong wall outlet. Replace the
2-prong outlet with a properly grounded 3-prong receptacle (a GFCI outlet) installed in accordance
with the National Electrical Code and local codes and ordinances. All wiring should be performed
by a qualified electrician.
• Protect the electrical cord from sharp objects, hot surfaces, oil, and chemicals. Avoid kinking the
cord. Do not use damaged or worn cords.
DANGER
• Do not pump flammable or explosive liquids such as oil, gasoline, kerosene, ethanol, etc. Do not
use in the presence of flammable or explosive vapors. Using this pump with or near flammable
liquids can cause an explosion or fire, resulting in property damage, serious personal injury, and/
or death.
• Always disconnect the power to the pump before servicing.
• Do not touch the motor housing during operation. The motor is designed to operate at high
temperatures. Do not disassemble the motor housing.
• Do not handle the pump or pump motor with wet hands or when standing on a wet surface, or in
water.
CAUTION
• Do not lift the pump by the power cord.
• Know the pump and its applications, limitations, and potential hazards.
• Follow all safety standards and all local electrical codes.
IMPORTANT
• The motor of this pump has a thermal protector that will trip if the motor becomes too hot. The
protector will reset itself once the motor cools down and an acceptable temperature has been
reached. The pump may start unexpectedly if it is plugged in.
• Ensure the electrical power source is adequate for the requirements of the pump.
• This pump is made of high-strength, corrosion-resistant materials. It will provide trouble-free
service for a long time when properly installed, maintained, and used. However, inadequate
electrical power to the pump, dirt, or debris may cause the pump to fail. Please carefully read the
manual and follow the instructions regarding common pump problems and remedies.
NOTE: This pump does not require a connection to a main stack vent, per the National Standard
Plumbing Code (NSPC) 2003 Section 11.7.9. SPECIFICATIONS
Power Supply 115V, 60Hz., 15 Amp Circuit
Liquid Temp Range 32°F to 120°F (0°-50°C)
Pump Inlet 1-1/2 in. NPT
Pump Discharge 1-1/4 in. NPT

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INSTALLATION INSTRUCTIONS
NOTE: 5” space is needed from sink bottom to inlet for proper operation. Do
NOT use plumber’s pipe threading compound (pipe dope) on plastic pipe, it
can damage the plastic, causing leaks and piping failure, voiding the warranty.
Total discharge
height should be
less than 11 feet.
1-1/2” Inlet
1-1/4”
Discharge
5”
Minimum
1-1/4” Male
Adapter
Discharge Pipe
Laundry
Sink
Check valve
must be installed
below the bottom
level of the sink.
Shut-Off/Flow
Balancing Valve
Min. 6.5 ft.
1-1/2” PVC
1-1/2” Female
Adapter
1-1/2” Male
Adapter
Pump
1-1/4” Nipple
1-1/4” Union 1-1/4” Socket to
Socket 90º Elbow
1-1/4” PVC
Screen
PREPARATION
Materials required for assembly:
1 1-1/2” NPT x 1-1/2” Slip Female Adapter
21-1/2” Schedule 40 PVC Pipe (to fit)
3 1-1/2” NPT x 1-1/2” Slip Male Adapter
41-1/4” NPT Galvanized Nipple (to fit)
51-1/4” NPT Galvanized Union
6 (2) 1-1/4” NPT x1-1/4” Male Adapter
7(2) 1-1/4” Schedule 40 PVC Pipe (to fit)
8 1-1/4” Socket to Socket 90° Elbow
9 1-1/4” Schedule 40 PVC Pipe to Drain
PVC Pipe Cement
PTFE Pipe Thread Sealant Tape
1-1/2” PVC Solvent Union
Materials supplied: Sink Drain Screen (D), 1-1/4” NPT x 1-1/4” Slip Check Valve (C),
1-1/4” NPT Ball Valve (B)
1. Place the sink in its nal location
2. Remove any existing drain ttings back
to the tail piece. Make sure the existing
tail piece does not leak.
3. Glue the 1-1/2 in PVC pipe into the
female adapter (purchase separately).
4. Wrap the threads of the tail piece with
1 to 1-1/2 turns of PTFE pipe thread
sealant tape. Thread the 1-1/2 in NPT
female adapter onto the sink-drain tail
piece. Thread it hand tight plus 1/2 turn
with a pipe wrench or slip joint pliers.
DO NOT over tighten.
5. Wrap the threads of the 1-1/2 in. male
adapter with 1 to 1-1/2 turns of PTFE
pipe thread sealant tape and install it in
the pump inlet. Tighten it hand tight plus
1/2 turn with a pipe wrench or slip joint
pliers. DO NOT over tighten.
6. Measure the 1-1/2 in. PVC pipe against
the drain and the pump and trim the
pipe to t.
Sink Bottom with Drain Port;
Tail Piece integral with Sink
1-1/2” Pump
Inlet Port
1-1/4” Pump
Discharge
For easier maintenance,
use 2 short sections of
pipe connected by a
1-1/2” Solvent Union.

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© 2021. All rights reserved.
The drain pump can pump up to 21 gallons per
minute (GPM). Normal sink drains allow only 5 to
6 GPM to ow. Adjust the discharge shut-o󰀨/ow
balancing valve as follows so that the pump does
not cycle on and o󰀨 when the faucets are on full.
• Run water into the sink. The pump will start
when it detects water.
• Check for leaks. IF leaks are found, unplug
the pump power cord and x the leaks before
proceeding.
• Put a stopper in the drain and allow the sink to
ll up a few inches.
• Open the discharge shut-o󰀨 valve, open the
faucets, and remove the stopper to drain the
sink.
• The pump will start. Adjust the discharge shut-
o󰀨/ow 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 ow. If it drops, slightly close the
discharge valve.
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 ow when the washing machine
discharges into it, unless the sink is ONLY used for
washing machine discharge.
Discharge Pipe
Laundry
Sink
Screen Check Valve
1-1/2” PVC
Pump
Shut-Off/Flow-
Balancing Valve
1-1/4” Union Half
1-1/4” Union
Half
OPERATING INSTRUCTIONS
ADJUSTING THE FLOW
AFTER the pump is completely installed, plug the
switch into the GFCI protected, properly grounded
outlet. Plug the pump into the back of the switch’s
plug.
GFCI Outlet
Switch Cord
Pump Cord
7. Do a trial assembly (dry - no glue) of the
pump onto the drain pipe. Swing the pump
until it accurately faces the discharge piping,
and then mark the pump and the inlet pipe/
adapter assembly so that you can accurately
install the pump in Step 8. Arrange a
temporary support under the pump to relieve
the strain on the sink drain piping while the
glue is setting. Leave it in place while you
measure and cut the discharge piping (Step
12).
8. Slide the pump up into position and glue the
pipe into the male adapter (on the pump).
9. Wrap the 1-1/4 in. galvanized nipple with
1-1/2 to 2 turns of PTFE pipe thread sealant
tape on each end and thread it into the
pipe discharge port. Do NOT overtighten,
overtightening can crack the plastic.
10.Hold the nipple with a pipe wrench and
thread on half of the 1-1/4 in union onto it,
hand tight plus 1-1/2 turns with a pipe wrench
or slip-joint pliers.
11. At this time, wrap the threads on both the
1-1/4 in male adapters with 1-1/2 to 2 turns
of PTFE pipe thread sealant tape. Thread
one of the adapters into the other half of the
1-1/4 in union, hand tight plus 1/2 turn with
a wrench or slip-joint pliers. DO NOT over
tighten!
12.Install the discharge piping as shown. The
order is:
a. 1-1/4 in. PVC Pipe cut to t
b. 90° Soc. to Soc. elbow
c. 1-1/4 in PVC Pipe cut to t
d. Male adapter
e. Flow Control/Ball Valve, Check Valve
f. 1-1/4 in. Outlet Pipe
13.Install the check valve in the vertical
discharge pipe with threads down. Be sure
the arrow points AWAY from the pump.
When the check valve is correctly installed,
the arrow showing direction of ow should
point UP. The vertical height for the check
valve to the pipe outlet should be at least 6
feet to avoid check valve leakage.
14.Connect the discharge piping to the building
drain.

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© 2021. All rights reserved.
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© 2021. All rights reserved.
WARRANTY
This product is warranted for one year from the date of purchase. Subject to the conditions
hereinafter set forth, the manufacturer will repair or replace to the original consumer, any
portion of the product which proves defective due to defective materials or workmanship.
This warranty does not cover replacement parts for failure due to normal wear and tear.
To obtain warranty service, contact the dealer from whom the product was purchased. The
manufacturer retains the sole right and option to determine whether to repair or replace
defective equipment, parts or components. Damage due to conditions beyond the control of
the manufacturer is not covered by this warranty.
THIS WARRANTY WILL NOT APPLY:
(a) To defects or malfunctions resulting from failure to properly install, operate or maintain the
unit in accordance with printed instructions provided;
(b) to failures resulting from abuse, accident or negligence or use of inappropriate chemicals or
additives in the water;
(c) to normal maintenance services and the parts used in connection with such service;
(d) to units which are not installed in accordance with normal applicable local codes,
ordinances and good trade practices; and
(e) if the unit is used for purposes other than for what it was designed and manufactured.
RETURN OF WARRANTED COMPONENTS:
Any item to be repaired or replaced under this warranty must be returned to the manufacturer
at Kendallville, Indiana or such other place as the manufacturer may designate, freight prepaid.
THE WARRANTY PROVIDED HEREIN IS IN LIEU OF ALL OTHER EXPRESS WARRANTIES, AND
MAY NOT BE EXTENDED OR MODIFIED BY ANYONE. ANY IMPLIED WARRANTIES SHALL
BE LIMITED TO THE PERIOD OF THE LIMITED WARRANTY AND THEREAFTER ALL SUCH
IMPLIED WARRANTIES ARE DISCLAIMED AND EXCLUDED. THE MANUFACTURER SHALL
NOT, UNDER ANY CIRCUMSTANCES, BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR
SPECIAL DAMAGES, SUCH AS, BUT NOT LIMITED TO DAMAGE TO, OR LOSS OF, OTHER
PROPERTY OR EQUIPMENT, LOSS OF PROFITS, INCONVENIENCE, OR OTHER INCIDENTAL
OR CONSEQUENTIAL DAMAGES OF ANY TYPE OR NATURE. THE LIABILITY OF THE
MANUFACTURER SHALL NOT EXCEED THE PRICE OF THE PRODUCT UPON WHICH SUCH
LIABILITY IS BASED.
This warranty gives you specic legal rights, and you may have other rights which vary from
state to state. Some states do not allow limitations on duration of implied warranties or
exclusion of incidental or consequential damages, so the above limitations may not apply to
you.
In those instances where damages are incurred as a result of an alleged pump failure, the
Homeowner must retain possession of the pump for investigation purposes.
This pump requires very little maintenance and
should provide a long service life. Problems are
rare; when the pump ow drops o󰀨, the most likely
cause is something solid going down the drain and
jamming the impeller.
TO CLEAR A JAMMED IMPELLER:
• Unplug the pump
• Close the discharge shuto󰀨 valve
• Bail out the sink as much as possible
• Disconnect the union, unscrew the pump from
the sink tail piece, lower the pump to the oor,
and slide it out from under the sink
• Remove the six housing screws
• Clean out the pump. Make sure that the pump
discharge is clear. If necessary, replace the
impeller.
• Install the new gasket (included with impeller).
Reassemble the pump.
• Raise the pump back into position, thread it
back onto the sink tail piece, and reconnect the
union.
• 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 no leaks.
CARE AND MAINTENANCE
No. P/N Description Qty.
1 025511 Diaphragm Switch 1
2 025512 Impeller, Gasket,
Mechanical Seal
1
D* 025513 Sink Drain Screen 1
C* 025514 1-1/4” NPT x 1-1/4” Slip
Check Valve
1
B* 025515 1-1/4” NPT Ball Valve 1
PARTS LIST
D
*Available Locally.

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© 2021. All rights reserved.
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Pump will not
run when water
flows in from the
sink.
1. The pump is unplugged. 1. Plug in the pump.
2. There is no power to the outlet. 2. Check the fuse/breaker.
3. The pump impeller is jammed. 3. Unplug the pump and follow the
procedure under “Maintenance” to
clear the pump.
4. The sink stopper is in the drain. 4. Remove stopper.
Pump runs but
does not empty
the sink.
1. The drain is clogged 1. Clear the drain screen.
2. The discharge line is clogged. 2. Unplug the pump. Then open and
clear discharge line.
3. The shut-o󰀨 valve is closed. 3. Open shut-o󰀨 valve slightly.
4. The system discharge line is too high
or too long.
4. Unplug the pump or reduce the
height or length of the discharge
line (11 ft. max. height)
5. The check valve is installed backwards. 5. Make sure the flow arrow on the
check valve points away from the
pump.
Pump cycles on
and off when no
water is in the
sink.
1. Check valve is not installed. 1. Unplug the pump and install the
check valve.
2. Check valve is jammed. 2. Unplug the pump. Then open
the discharge line and clean the
check valve.
Pump cycles on
and off when
the sink is at
maximum water
flow or is full.
1. Shut-o󰀨 valve is not adjusted. 1. See “Operation Instructions.”
2. Shut-o󰀨 valve is not installed. 2. Unplug the pump and install a
shut-o󰀨 valve.
RISK OF ELECTRIC SHOCK.
Always disconnect power source before attempting to install, service or maintain the pump. Never
handle a pump with wet hands or when standing on wet or damp surface or in water. Fatal electrical
shock could occur.
DANGER