Submersible Pump Repair Course

Lesson 1 • Pump Types and Their Applications

Distinguishes deep-well, shallow-well, sewage, and utility pump variants by design and duty. Connects pump selection to site conditions covered in later installation chapters.

Lesson 2 • System Components Beyond the Pump

Introduces pressure tanks, control boxes, pitless adapters, and drop pipes as integral system elements. Students see how the pump interacts with the full water delivery system.

Lesson 3 • How Submersible Pumps Work

Covers the pressure-driven mechanics that move water from source to surface. Establishes the physical principles underpinning every installation and repair task in the course.

Lesson 4 • Performance Ratings and Specifications

Explains GPM, TDH, horsepower, and voltage ratings found on pump nameplates. Accurate spec reading is essential for correct pump selection and system sizing.

Lesson 1 • Regulatory and Code Compliance Basics

Covers potable water protection standards, electrical installation codes, and permit requirements applicable to pump work. Compliance knowledge prevents costly rework and legal liability.

Lesson 2 • Worksite Preparation and Housekeeping

Establishes procedures for securing the work area, managing water discharge, and proper cleanup. A prepared site reduces accidents and protects the water source from contamination.

Lesson 3 • Electrical Hazard Awareness

Identifies shock, arc-flash, and ground-fault risks specific to wet pump environments. Hazard recognition is the prerequisite for all electrical work in later chapters.

Lesson 4 • Essential Tools and Equipment

Catalogs hand tools, power tools, multimeters, and lifting equipment required for pump work. Tool familiarity reduces errors and injury during installation and repair tasks.

Lesson 1 • Total Dynamic Head Calculation

Breaks TDH into static lift, friction loss, and pressure requirements with worked examples. Correct TDH is the single most critical input for pump curve selection.

Lesson 2 • Well and Water Source Evaluation

Teaches measurement of static water level, well yield, and casing diameter. Accurate source data drives every downstream sizing and selection decision.

Lesson 3 • Pump and Motor Selection

Applies TDH and GPM values to manufacturer performance curves to select the optimal pump. Students verify motor voltage compatibility and efficiency at the operating point.

Lesson 4 • Pressure Tank and Control System Sizing

Sizes bladder and diaphragm tanks to minimize short-cycling and meet drawdown requirements. Correct tank sizing extends motor life and maintains steady pressure.

Lesson 1 • Variable Frequency Drive Integration

Introduces VFD installation, parameter programming, and benefits for pump speed control. VFD use reduces energy consumption and extends motor life in variable-demand systems.

Lesson 2 • Control Box Components and Operation

Explains capacitor, relay, and overload functions inside the control box. Understanding internal components enables accurate component-level diagnosis and replacement.

Lesson 3 • Pressure Switch Wiring and Adjustment

Covers pressure switch contact operation, differential adjustment, and wiring to the control circuit. Correct switch settings prevent short-cycling and protect the motor.

Lesson 4 • Pump Motor Electrical Fundamentals

Reviews single-phase and three-phase motor theory as applied to submersible pump motors. Motor electrical knowledge is the foundation for all wiring and diagnostic work.

Lesson 1 • Electrical Wiring and Control Box Connection

Wires the pump cable to the control box and pressure switch following code-compliant methods. Correct wiring prevents motor burnout and ensures safe operation.

Lesson 2 • Drop Pipe Assembly and Pump Lowering

Demonstrates threaded and pitless-adapter drop-pipe assembly with correct torque and alignment. Proper lowering technique prevents cable damage and pump misalignment.

Lesson 3 • Pitless Adapter and Wellhead Installation

Installs the pitless adapter to route water through the casing below frost depth. A correctly sealed wellhead prevents surface contamination from entering the well.

Lesson 4 • Pre-Installation Inspection and Preparation

Covers pump unboxing inspection, torque specs review, and staging of all components before lowering. Thorough preparation prevents costly retrieval caused by missed steps.

Lesson 1 • Electrical Fault Diagnosis

Isolates open circuits, ground faults, and failed capacitors using systematic meter testing. Electrical faults account for the majority of pump failures and must be ruled out first.

Lesson 2 • Using Diagnostic Instruments Effectively

Applies clamp meters, pressure gauges, and data loggers to capture real-time system data. Instrument-based evidence supports accurate diagnosis and documents findings for clients.

Lesson 3 • Pressure Tank and Control System Faults

Diagnoses waterlogged tanks, failed bladders, and faulty pressure switches as system-level causes. Tank and control faults are often misattributed to the pump itself.

Lesson 4 • Symptom-Based Diagnostic Framework

Introduces a structured symptom-to-cause diagnostic tree covering no-flow, low-flow, and cycling faults. A consistent framework prevents misdiagnosis and unnecessary pump retrieval.

Lesson 1 • Safe Pump Retrieval Techniques

Covers power isolation, cable management, and incremental pipe removal during pump extraction. Improper retrieval is the leading cause of cable damage and dropped pumps.

Lesson 2 • Pump Disassembly and Inspection

Guides systematic disassembly of motor, impeller stack, and diffusers with wear measurement. Inspection data determines whether repair or replacement is the cost-effective choice.

Lesson 3 • Cable Repair and Splice Waterproofing

Performs submersible-rated cable splices using heat-shrink and epoxy-fill methods. A watertight splice is critical to prevent ground faults and motor failure after reinstallation.

Lesson 4 • Reinstallation and Post-Repair Verification

Reinstalls the repaired pump using the same procedures as new installation with added verification steps. Post-repair testing confirms the repair resolved the original fault completely.

Lesson 1 • Energy Efficiency Optimization

Applies pump curve analysis, pressure setting adjustment, and VFD use to reduce operating costs. Efficiency improvements deliver measurable savings and reduce motor thermal stress.

Lesson 2 • Routine Inspection Procedures

Covers amperage trending, pressure tank checks, and wellhead integrity inspections as routine tasks. Early detection of degradation prevents emergency failures and costly pump retrieval.

Lesson 3 • System Upgrades and Life Extension

Evaluates when component upgrades, re-sizing, or full replacement deliver better value than continued repair. Students apply a cost-benefit framework to real-world upgrade scenarios.

Lesson 4 • Establishing a Maintenance Schedule

Defines inspection intervals based on duty cycle, water quality, and manufacturer recommendations. A documented schedule is the foundation of any reliability-centred maintenance programme.