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Pacific hydrostar 47906 - User Manual

Pacific hydrostar 47906
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SHALLOW WELL PUMP
1 HP - Stainless Steel
47906
SET UP AND OPERATING INSTRUCTIONS
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright
©
2002 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 without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may
differ slightly from the product described herein. Tools required for assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised Manual 08i, 08k; 09f, 09k

Table of Contents

Questions and Answers

  • G
    Gregory ByrdAug 17, 2025
    What to do if my Pacific hydrostar Water Pump motor runs, but water is not pumping?
    • U
      ublakeAug 17, 2025
      If your Pacific hydrostar Water Pump isn't pumping water even when the motor is running, there could be several reasons. First, ensure the pump is properly primed by pouring clean water into the Priming Inlet. Check all pipes and joints in the suction line for air leakage using soapy water. Reduce vertical lift to within specifications. Make sure the water level is not below the suction inlet of the foot valve; lower the suction line and re-prime. If water is deeper than 26 ft, a deep well pump may be needed. Thaw the pipes if they are frozen, and consider burying or insulating them. Raise the foot valve if it's in dirt or sand. Clean or replace a clogged foot/check valve. Finally, have the pressure switch adjusted by a qualified technician (20-50 psi) if it's set too low.
  • J
    Joseph CarterAug 19, 2025
    How to fix a Pacific hydrostar Water Pump that won’t start?
    • J
      Julie LoweryAug 19, 2025
      To troubleshoot a Pacific hydrostar Water Pump that won't start, begin by checking the power connections and breaker/fuse. Ensure the pressure switch is properly connected by checking the gauge. If the thermal protection has cut out, allow the pump to cool. Finally, if the impeller is blocked, free it.
  • C
    Crystal LeonardAug 22, 2025
    Why my Pacific hydrostar Water Pump does not shut- off?
    • N
      nfriedmanAug 22, 2025
      If your Pacific hydrostar Water Pump is not shutting off, several issues could be the cause. A common problem is the pressure switch contacts being welded together, which requires replacement by a qualified technician. Check for open or leaking faucets and repair them. Similarly, repair any leaky toilets. Clean the impeller if it's clogged. Ensure the tank bladder pressure is correctly inflated to 26-29 psi. Repair any pipeline leakage. Lastly, replace the foot/check valve if it leaks water back into the well.
  • J
    jbowmanAug 25, 2025
    What to do if my Pacific hydrostar Water Pump operates but it won’t discharge water?
    • N
      Natalie LynchAug 26, 2025
      If your Pacific hydrostar Water Pump operates but doesn't discharge water, the following could be the reasons: * The pump may not be primed, so prime it. * The lift height may be exceeded, so reduce it. * The inlet tube may not be submerged, so submerge it. * There may be air in the suction pipe, so check the pipe and seals. * The inlet screen may be clogged, so clean it.
  • G
    Gloria JohnsonAug 27, 2025
    Why Pacific hydrostar Water Pump tank bladder will not hold pressure?
    • C
      Cynthia CarrollAug 27, 2025
      If the tank bladder of your Pacific hydrostar Water Pump won't hold pressure, it could be due to a leaking air inlet valve. Check the air tank for leaks using soapy water. If the bladder is broken, replace it.
  • J
    Jennifer HuffmanAug 30, 2025
    Why does my Pacific hydrostar Water Pump only have a low volume of water flowing?
    • R
      Rachel ReeseAug 31, 2025
      If you're experiencing a low volume of water flow from your Pacific hydrostar Water Pump, consider these potential causes: the inlet pipe might be too small, so increase the pipe diameter. If the liquid is too dirty, clean the screen frequently. If the lifting height is exceeded, reduce it. If the tank’s rubber bladder is under-inflated, inflate it to 26-29 PSI. If the piping is corroded, causing friction, replace it, using plastic where possible.
  • S
    stephen66Sep 2, 2025
    Why does my Pacific hydrostar Water Pump motor overheat often?
    • B
      Beth MartinSep 2, 2025
      If your Pacific hydrostar Water Pump is overheating often, it could be due to an extension cord that is too long or has a wire size that is too small. Try eliminating the use of an extension cord, or use a shorter/heavier gauge cord. Alternatively, the pump might be cycling too often. In this case, the cut-in and cut-out pressure may be set too closely; have the pressure switch adjusted by a qualified technician.
  • A
    Angela GonzalezSep 5, 2025
    Why my Pacific hydrostar Water Pump pumps intermittently?
    • E
      Emily YoungSep 5, 2025
      If your Pacific hydrostar Water Pump is pumping water intermittently, the water level may be drawn below the foot valve. Lower the foot valve to resolve this issue.
  • S
    Shirley CraneSep 7, 2025
    Why Pacific hydrostar Water Pump will not hold prime?
    • S
      Scott AdamsSep 7, 2025
      If your Pacific hydrostar Water Pump will not hold prime, it could be due to the foot/check valve not being installed in the suction line; in this case, install a foot and check valve in the suction line. Alternatively, the foot/check valve may be leaking water back to the well, requiring replacement.
  • J
    Jose MurraySep 10, 2025
    Why is the water full of bubbles at the outlet of my Pacific hydrostar Water Pump?
    • T
      Teresa SanchezSep 10, 2025
      If the water at the outlet of your Pacific hydrostar Water Pump is full of bubbles, it could be due to several reasons. It may be pumping bubbles temporarily as air is purged after the initial setup, which is a temporary, self-remedying issue. Alternatively, there may be a leak in the suction side of the pump system, so check for and fix any leaks. If the well is gaseous, install a sleeve in the well. Lastly, the water level may be below the suction inlet of the foot valve; lower the suction line into the water and re-prime. If the water is deeper than 26 ft, a deep well pump may be needed.

Summary

IMPORTANT SAFETY INFORMATION

Safety Alert Symbol Explanation

Explains the safety alert symbol and its meaning for potential hazards.

Hazard Level Definitions

Defines hazard levels: DANGER, WARNING, CAUTION, and NOTICE.

SAFETY WARNINGS AND PRECAUTIONS

General Safety Advice

Read all warnings, save instructions, keep work area clean and lighted.

Personal Safety Practices

Keep children away, use right pump, dress properly.

OPERATIONAL SAFETY GUIDELINES

Personal Protection and Ergonomics

Use eye/ear protection, maintain footing, avoid overreaching.

Maintenance and Care Practices

Keep pump clean, inspect cords, use qualified technicians.

Electrical Safety and Cords

Use proper extension cords, avoid damaged parts, do not install under influence.

SPECIFIC SAFETY AND SPECIFICATIONS

Electrical Safety with Water

Exercise caution with electrical equipment near water; use GFCI outlets.

California Proposition 65 Warnings

Alerts about lead in brass components and cord handling.

Technical Specifications

Lists key operational parameters like voltage, motor speed, flow rate, and pressure.

UNPACKING

Unpacking Procedure

Check for intactness, contact support for missing/broken parts.

INSTALLATION

Water Quality and Suction Lift

Pump water must be clean; total suction lift must not exceed specs.

Installation Components

Install foot valve at bottom of suction pipe, use well seal at top.

INSTALLATION DETAILS

Pipe Requirements and Layout

Minimum 1" diameter pipes, slope off-set line towards well.

Mounting and Safety

Install on rigid platform; use GFCI outlets, keep power lines away from water.

Intake Fitting Caution

Do not insert intake fittings more than 1/2" to prevent pump damage.

OPERATION

Compression Tank Air Pressure

Maintain 26-29 PSI air in compression tank bladder.

Pre-Operation Checks

Ensure intake pipe is submerged; prime pump before first use.

Pump Start and Standby

Plug in, turn on; pump starts automatically and goes to standby mode.

MAINTENANCE

Pre-Maintenance Safety

Disconnect power source before performing maintenance.

Routine Care and Storage

Clean inlet screen, wipe pump, drain for storage, check impeller after storage.

TROUBLESHOOTING

Common Starting and Flow Issues

Solutions for pump not starting, no water, or low water volume.

Performance and Pressure Problems

Covers motor overheating, rapid cycling, tank pressure loss.

TROUBLESHOOTING AND INFORMATION

Prime Retention and Air Issues

Solutions for losing prime, bubbles at outlet, or motor running without pumping.

Pump Shut-off Problems

Addresses causes and solutions for the pump failing to shut off.

Repair and Liability Disclaimer

States repairs should be by certified technicians; buyer assumes all risk.

PARTS LIST

Component Identification

Lists parts with descriptions and quantities for assembly reference.

Serial Number Record

Instruction to record product serial number or purchase date.

ASSEMBLY DRAWING

Pump Component Diagram

Visual diagram showing pump parts with numerical labels for assembly.

PARTS LIST AND ASSEMBLY DRAWING A

Accessory Parts Diagram

Illustrates parts related to Assembly Drawing A, including the compression tank.

LIMITED 1 YEAR; 90 DAY WARRANTY

Warranty Coverage and Limitations

Details warranty periods, exclusions like misuse, and claim process.

Pacific hydrostar 47906 Specifications

General IconGeneral
BrandPacific hydrostar
Model47906
CategoryWater Pump
LanguageEnglish

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