Pacific hydrostar SUBMERSIBLE DIRTY WATER PUMP 93819 User manual

SUBMERSIBLE DIRTY WATER PUMP
Model 93819 - 1 HP
Model 93820 - 1.2 HP
ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at: http://www.harborfreight.com
Copyright © 2006 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
For technical questions, please call 1-800-444-3353.
Distributed exclusively by
Harbor Freight Tools®.
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
Due to continuing improvements, actual product may differ slightly from the product described herein.
without the express written consent of Harbor Freight Tools.
Revised 08i

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 2
93820
PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operat-
ing, inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY RULES
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in
electric shock, re, and/or serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark areas
invite accidents.
Model 93819 93820
Electrical Requirements 120 V~ / 60 Hz / 750 W / 6 A / 1 HP Motor 120 V~ / 60 Hz / 900 W / 7 A / 1.2 HP Motor
Power Cord Plug 3-Prong, Grounded
Power Cord 18 Ft. Long / 18AWG x 3C
Thermal Overload Protection Yes
Switch Automatic ON/OFF Float
Self-Priming Yes
Maximum Size Particle Uptake 0.196”
Maximum Pressure 14.5 PSI/1.0 bar 16 PSI/1.1 bar
Maximum Capacity 3400 Gal. Per Hour/56 Gal. Per Min. 3700 Gal. Per Hour/61 Gal. Per Min.
Maximum Delivery Height 26 Feet 28 Feet
Maximum Submersion Depth 16 Feet
Discharge Diameter 1-1/2”
Minimum Uptake Depth 4”
Maximum Operating Temperature 95° F
REV 07j

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 3
93820
2. Do not operate power tools in explosive atmospheres, such as in the
presence of ammable liquids, gases, or dust. Power tools create sparks
which may ignite the dust or fumes.
3. Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control.
ELECTRICAL SAFETY
4. Grounded tools must be plugged into a GFCI (Ground Fault Circuit
Interrupter) outlet, properly installed, and grounded in accordance with all
codes and ordinances. Never remove the grounding prong or modify the
plug in any way. Do not use any adapter plugs. Check with a qualied
electrician if you are in doubt as to whether the outlet is properly grounded.
If the tools should electrically malfunction or break down, grounding provides a
low resistance path to carry electricity away from the user.
5. Double insulated tools are equipped with a polarized plug (one blade is
wider than the other). This plug will t in a polarized outlet only one way. If
the plug does not t fully in the outlet, reverse the plug. If it still does not
t, contact a qualied electrician to install a polarized outlet. Do not
change the plug in any way. Double insulation eliminates the need for the
three wire grounded power cord and grounded power supply system.
6. Avoid body contact with grounded surfaces such as pipes, radiators,
ranges, and refrigerators. There is an increased risk of electric shock if your
body is grounded.
7. Do not abuse the Power Cord. Never use the Power Cord to carry the
tool or pull the Plug from an outlet. Keep the Power Cord away from
heat, oil, sharp edges, or moving parts. Replace damaged Power Cords
immediately. Damaged Power Cords increase the risk of electric shock.
PERSONAL SAFETY
8. Stay alert. Watch what you are doing, and use common sense when
operating this product. Do not use the Fountain while tired or under the
inuence of drugs, alcohol, or medication. A moment of inattention while
operating this product may result in serious personal injury.

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 4
93820
9. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
10. Use safety equipment. Wear ANSI approved safety impact goggles when
assembling this product. Non-skid safety shoes must be used for appropriate
conditions.
TOOL USE AND CARE
11. Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the Pump. Such preventive
safety measures reduce the risk of starting the unit accidentally.
12. Store idle equipment out of reach of children and other untrained persons.
Electrically powered products are dangerous in the hands of untrained users.
13. Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect this product’s operation. If damaged,
have the Fountain serviced before using. Many accidents are caused by
poorly maintained equipment.
SERVICE
14. Service must be performed only by qualied repair personnel. Service
 ormaintenanceperformedbyunqualiedpersonnelcouldresultinariskofinjury.
15. When servicing this product, use only identical replacement parts. Follow
instructions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
SPECIFIC SAFETY RULES
1. Maintain labels and nameplates on the Pump. These carry important
information. If unreadable or missing, contact Harbor Freight Tools for a
replacement.
2. Wear ANSI approved safety impact eye goggles when assembling
the Pump. Using personal safety devices reduce the risk for injury.
Safety impact eye goggles are available from Harbor Freight Tools.

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 5
93820
3. Use the right product for the job. There are certain applications for which this
product was designed. Do not use small tools, attachments, or equipment to do
the work of larger industrial tools, attachments, or equipment.
4. Maintain a safe environment. Keep the area well lit. Make sure there is ade-
quate surrounding space. Always keep the area free of obstructions, grease, oil,
trash, and other debris. Do not use an electrically powered product in areas near
ammablechemicals,dusts,andvapors.
5. WARNING! Risk of electrical shock. Always disconnect the Pump from
its power source before handling or making any adjustments to the tool.
Alwayswearnon-skidrubberbootswhenwaterisontheoorandyou 
must unplug the Pump. Never allow the internal Motor to get wet. Make
sure the electrical power source is a separately fused, grounded, 3-wire
type GFCI (Ground Fault Circuit Interrupter) outlet. Do not remove the
ground prong on the Power Cord Plug. Do not use an extension
cord.
6. Do not pump hazardous materials. Donotpumpexplosiveorammablema-
terials such as fuel, oil, kerosene, gasoline, etc. Do not pump in close proximity
toammableorexplosivematerials.Donotpumpfats,oils,saltorwastewater.
This Pump is designed to move clean or dirty water only. Do not pump water
over 95 degrees Fahrenheit.
7. Make sure the discharge pipe (not included) is secured to a solid surface to
ensure the stability of the Pump.
8. Make sure to position the Pump on a at, level, solid surface.
9. WARNING! Always arrange a “drip loop” in the Power Cord connect-
ing the Pump to a 120 volt, GFCI electrical outlet. A drip loop is that part of
the Power Cord below the level of the outlet to prevent water from traveling along
the Power Cord and coming in contact with the outlet. If the Power Plug or elec-
trical outlet does get wet, do not unplug the Power Cord. Disconnect the fuse or
circuit breaker that supplies power to the Pump. Then, unplug the Power Cord
and examine for presence of water in the outlet. (See Figure A.)
PUMP
OUTLET
FIGURE A
OUTLET
DEVICE
CORD
Drip Loop

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 6
93820
GROUNDING
WARNING!
Improperly connecting the grounding wire can result in the risk of electric shock. Check with
a qualied electrician if you are in doubt as to whether the outlet is properly grounded. Do
not modify the power cord plug provided with the tool. Never remove the grounding prong
from the plug. Do not use the tool if the power cord or plug is damaged. If damaged, have
it repaired by a service facility before use. If the plug will not t the outlet, have a proper
outlet installed by a qualied electrician.
10. If necessary, have a certied electrician install (within 14 feet of where the
Pump will be located) a 120 volt, GFCI electrical outlet that is dedicated
only to the Pump. Any outlet should be above the water line.
11. NEVER raise or lower the Pump by its electrical Power Cord.
12. In cold weather, when the Pump is not in use, protect the interior of the
Pump from freezing by draining the water and pumping a permanent type
automobile anti-freeze containing a rust inhibitor through the system. A
 50%mixturewithwaterisrecommended.Besuretoushthesystemwitha 
neutralizing liquid prior to re-use of the Pump.
13. Prior to use, and periodically thereafter, check to make sure all connections
are tight and secure.
14. Industrial applications must follow OSHA requirements.
15. Performance of this product may vary depending on variations in local line
voltage.
16. WARNING! People with pacemakers should consult their physician(s) be-
fore using this product. Operation of electrical equipment in close proximity to a
heart pacemaker could cause interference or failure of the pacemaker.
17. WARNING! The warnings and cautions discussed in this manual cannot
cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot
be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 7
93820
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
1. Tools marked with “Grounding Required” have a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet. If
the tool should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user, reducing the risk of elec-
tric shock. (See Figure B.)
2. The grounding prong in the plug is connected through the green wire inside the
cord to the grounding system in the tool. The green wire in the cord must be the
only wire connected to the tool’s grounding system and must never be attached
to an electrically “live” terminal. (See Figure B.)
3. Your tool must be plugged into an appropriate outlet, properly installed and
grounded in accordance with all codes and ordinances. The plug and outlet
should look like those in the following illustration. (See Figure B.)
THIS PRODUCT
USES A
3-PRONG
ELECTRICAL
PLUG
120 VOLT,
GROUNDED,
ELECTRICAL OUTLET
FIGURE B
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
4. Tools marked “Double Insulated” do not require grounding. They have a special
 doubleinsulationsystemwhichsatisesOSHArequirementsandcomplieswith 
the applicable standards of Underwriters Laboratories, Inc., the Canadian
Standard Association, and the National Electrical Code. (See Figure C.)
5. Double insulated tools may be used in either of the 120 volt outlets shown in the
following illustration. (See Figure C.)
THIS PRODUCT
DOES NOT USE A
2-PRONG
ELECTRICAL
PLUG 120 VOLT,
GROUNDED,
ELECTRICAL OUTLETS
FIGURE C

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93820
FIGURE D
SYMBOLOGY
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List on page 12
are included. If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.
ASSEMBLY AND OPERATING INSTRUCTIONS
NOTE:
For additional information regarding the parts listed in the
following pages, refer to the Assembly Diagram on page 13.
1. WARNING! Always make sure to turn off the electricity powering the
Pump’s electrical outlet and that the Pump is unplugged from its outlet prior to
assembling the unit, unclogging the unit, or making any adjustments to the unit.
2. If necessary,haveacertiedelectricianinstall(within14feetofwherethePump
will be located) a 120 volt, GFCI electrical outlet that is dedicated only to the
Pump. Any outlet should be well above the water line.
3. The size of the discharge outlet on the Union (37) is 1-1/2” diameter. Only a
1-1/2” diameter Discharge Pipe (not included) must be used. Do not attempt to
 reducethedischargesizebelow1-1/2”asthiswillaffectPumpowandperfor- 
mance. (See Figure E, next page.)

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93820
4. Connect the Union (37) to the Coupler (34). Make sure to hand tighten only.
Over-tightening may cause the Union to crack. Then, connect a 1-1/2” diam-
eter Discharge Pipe to the Union. NOTE: Make sure the Discharge Pipe is
secured to a solid surface, with appropriate hardware (not included), to ensure
the stability of the Pump. (See Figure E.)
5. Install an additional union (not included) or other means of separating the Dis-
 chargePipejustabovetheoortofacilitateremovalofthePumpifnecessary.
(See Figure E.)
6. A check valve (not included) is recommended just above, or in place of, the
 Uniontopreventthebackowofwateraftereachpumpcycle.IfaCheckValve 
is used, a 1/8” diameter air bleed hole should be drilled through the Discharge
Pipe just above the lower Union (37) to prevent Pump “airlock”. A small spray of
water out of this hole is normal while the Pump is running. (See Figure E.)
CHECK VALVE
OR
UNION
(NOT INCLUDED)
1-1/2” DIAMETER
DISCHARGE PIPE
(NOT INCLUDED)
1/8” AIR BLEED HOLE
(WATER SPRAY IS NORMAL)
POWER CORD & PLUG
(1)
UNION
(37)
FIGURE E
FLOAT SWITCH
(2)
FLOAT
SWITCH LOCK
COUPLER
(34)

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93820
7. Carefully set the Pump in place. Do not lower or raise the Pump by its Power
Cord (1) or Discharge Pipe. (See Figure E.)
8. The Float Switch (2) automatically switches on and off at a water depth of ap-
proximately 4 inches. The ON/OFF height can be manually adjusted by adjusting
the Float Switch Lock. CAUTION: Do not run the Pump dry. Doing so will
increase wear to the unit and possibly cause seal damage. (See Figure E.)
9. NOTE: This Pump has a built-in thermal protector for the Motor which automati-
cally shuts it off to avoid overheating. After the Motor cools, it will cycle back on.
Wait for the cycle to continue. Do not try to turn on the Pump manually after it
has automatically shut off.
10. Connect additional Discharge Pipe as needed to direct the water discharge to the
desired location. The discharge should be kept as short as possible with a mini-
mum number of turns. IMPORTANT: Do not exceed the maximum lift of the
Pump:
1 HP Model 93819 = 26 Feet.
1.2 HP Model 93820 = 28 Feet.
11. Connect the Power Cord & Plug (1) to its 120 volt, GFCI electrical outlet, while
making sure to form a “drip loop” in the Power Cord. (See Figure A.)
12. When the water level exceeds approximately 4 inches the Pump will
automatically turn on and run continuously until the water level falls below 4
inches at which time the Pump will automatically turn off.
13. WARNING! When shutting off power to the Pump, always shut off the
 electricalpowertotheGFCIoutletrst.Then,disconnectthePump’sPower 
Cord & Plug (1) from the GFCI outlet.
INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! AlwaysshutofftheelectricalpowertotheGFCIoutletrst.
Then, disconnect the Pump’s Power Cord & Plug (1) from the GFCI outlet prior to
performing any inspection, maintenance, or cleaning procedures.
2. Before each use, inspect the general condition of the Pump. Check for cracked
or broken parts, damaged electrical wiring, clogged Impeller Cover, Impeller, Dis-
charge Pipes, and any other condition that may affect safe operation. If abnor-
mal noise or vibration occurs, have the problem corrected before further use. Do
not use damaged equipment.
3. To clean the Impeller Cover and Impeller: A clogged or dirty Impeller Cover

SKU 93819 For technical questions, please call 1-800-444-3353 PAGE 11
93820
or Impeller (25) will greatly reduce performance of the Pump. To clean the Impel-
ler Cover (32), spray the Cover with clean water. To clean the Impeller, remove
the three Tapping Screws (39) at the bottom of the Base (38). Then, remove the
Base to expose the Impeller Cover and Impeller. Use a stream of clean water to
clean the Impeller and Impeller area inside the Pump. Then, replace the Base.
(See Figure F and Assy. Diagram.)
4. When storing, make sure to store the Pump in a clean, dry, safe location out of
reach of children. In cold weather, when the Pump is not in use, protect the in-
terior of the Pump from freezing by draining the water and pumping a permanent
type automobile anti-freeze containing a rust inhibitor through the system. A 50%
mixturewithwaterisrecommended.Besuretoushthesystemwitha neu-
tralizing liquid prior to re-use of the Pump.
5. CAUTION! All maintenance, service, or repairs not mentioned in this
manual must only be performed by a qualied service technician.
TROUBLESHOOTING
BASE (38)
IMPELLER (25)
IMPELLER COVER (32)
FIGURE F
Problem Possible Solution
Pump does not start. Make sure the Pump is plugged into a working 120 volt, GFCI, electrical1.
outlet. (See page 5.)
Adjust the Float Switch to a lower position.2. (See page 10.)
NoowfromPump. Clean Impeller and Impeller Cover.1.
Check Discharge Pipe for freezing or blockage. If necessary, thaw Pipe2.
and/or remove excessive debris.
Discharge Pipe excessively bent. Reset Pipe.3.
Pump does not switch off. Float Switch cannot sink down. Lower Float Switch. (See page 10.)
Insufcientow. Clean Impeller and Impeller Cover.1. (See page 11.)
Check Discharge Pipe for freezing or blockage. If necessary, thaw Pipe2.
and/or remove excessive debris.
HaveaqualiedservicetechniciancleaninteriorofPumpand,if3.
necessary, replace worn parts.
Pump switches off too soon. Clean Impeller and Impeller Cover.1. (See page 11.)
Make sure the water temperature does not exceed 95° Fahrenheit.2.

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93820
PARTS LIST
NOTE:
Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE
OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER
AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS
SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER.
THE BUYER ASSUMES ALL RISKS AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.
Part # Description Qty. Part # Description Qty.
1 Power Cord & Plug 1 22 Cable Sleeve 1
2 Float Switch 1 23 O-Ring 1
3 Screw 4 24 Washer 1
4 Pump Rear Cover 1 25 Impeller 1
5 Cable Sleeve 1 26 Lock Nut 1
6 Cable Clamp 2 27 Housing 1
7 Capacitor 1 28 Steel Ball 1
9 Cable Clamp Block 1 29 Washer 1
10 Tapping Screw 3 30 Tapping Screw 1
11 Motor Rear Cover 1 31 O-Ring 1
12 Washer 1 32 Impeller Cover 1
13 Bearing 2 33 Tapping Screw 3
14 Rotor 1 34 Coupler 1
16 Stator 1 35 O-Ring 2
17 Seal Ring 3 36 Adaptor 1
19 O-Ring 1 38 Base 1
20 Motor Front Cover 1 39 Tapping Screw 3
21 Washer 4
Rev 08i

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93820
ASSEMBLY DIAGRAM
NOTE:
Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
17
18
19
20
17
17
23
24
25
26
27
36
35
34
35
31
28
29
30 32
33
38
39
16
13
14
13
12
11, 15
10
9
7
6
5
22
4
3, 21
2
1
Rev 08i

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93820
LIMITED 1 YEAR / 90 DAY WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that for a period
of ninety days from date of purchase that the engine/motor, the belts (if so equipped),
and the blades (if so equipped) are free of defects in materials and workmanship. Har-
bor Freight Tools also warrants to the original purchaser, for a period of one year from
date of purchase, that all other parts and components of the product are free from
defects in materials and workmanship (90 days if used by a professional contractor or
if used as rental equipment). This warranty does not apply to damage due directly or
indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our
facilities, normal wear and tear, or to lack of maintenance. We shall in no event be liable
for death, injuries to persons or property, or for incidental, contingent, special or con-
sequential damages arising from the use of our product. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation
of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us
with transportation charges prepaid. Proof of purchase date and an explanation of the
complaintmustaccompanythemerchandise.Ifourinspectionveriesthedefect,we
will either repair or replace the product at our election or we may elect to refund the
purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that
the defect resulted from causes not within the scope of our warranty, then you must
bear the cost of returning the product.
Thiswarrantygivesyouspeciclegalrightsandyoumayalsohaveotherrights
which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]