Wastewater Reticulation System Operation And Maintenance Training

Objectives:
• Understand the purpose and components of wastewater reticulation systems.
• Identify key stakeholders and regulatory frameworks in South Africa.
• Recognise health, safety, and environmental considerations.
• Describe the basic flow of wastewater from source to treatment.

Topics:
• Overview of wastewater reticulation systems.
• Components: pipes, manholes, pumps, valves.
• South African water regulations (SANS, DWS guidelines).
• Health and safety induction (HIRA, PPE).
• Environmental impact and spill prevention.
• Basic hydraulics and flow principles.

Objectives:
• Interpret reticulation network layouts and schematics.
• Understand design criteria for pipes and fittings.
• Explain the role of gravity and pumping stations.
• Identify common layout configurations.

Topics:
• Reading reticulation plans and as-built drawings.
• Pipe materials (PVC, HDPE, concrete, ductile iron).
• Design criteria: flow rates, gradients, pipe sizing.
• Gravity vs. pressurised systems.
• Manhole types and spacing.
• Pump station components and siting.

Objectives:
• Apply safety protocols for confined space entry.
• Conduct risk assessments for reticulation tasks.
• Use appropriate PPE and rescue equipment.
• Implement emergency response procedures.

Topics:
• Confined space entry procedures (SANS 10089).
• Risk assessment methods (JSA, HIRA).
• PPE selection and inspection.
• Gas detection and ventilation.
• Rescue plans and equipment.
• Lockout/tagout (LOTO) for pumps and valves.

Objectives:
• Identify tools for maintenance and repair.
• Select appropriate materials for pipe repairs.
• Operate basic equipment safely.
• Maintain tools and equipment.

Topics:
• Hand tools: spanners, cutters, wrenches.
• Power tools: saws, drills, compactors.
• Pipe jointing methods (solvent weld, electrofusion, flanged).
• Pipe cutting and beveling tools.
• CCTV inspection equipment.
• Maintenance of tools and equipment records.

Objectives:
• Conduct visual inspections of reticulation assets.
• Use CCTV and other technologies for condition assessment.
• Identify defects and deterioration.
• Document inspection findings.

Topics:
• Visual inspection of manholes, pipes, and structures.
• CCTV inspection techniques and interpretation.
• Defect coding (e.g., WRC defect codes).
• Flow monitoring and smoke testing.
• Dye testing for cross-connections.
• Inspection report writing.

Objectives:
• Develop a preventive maintenance schedule.
• Perform routine cleaning and flushing.
• Lubricate and service valves and pumps.
• Record maintenance activities.

Topics:
• Preventive maintenance planning.
• Cleaning methods: jetting, rodding, pigging.
• Valve maintenance: gate, butterfly, non-return.
• Pump maintenance: seals, bearings, impellers.
• Greasing and lubrication schedules.
• Maintenance logbooks and CMMS.

Objectives:
• Diagnose common reticulation faults.
• Execute pipe and fitting repairs.
• Manage emergency repairs safely.
• Restore service after a failure.

Topics:
• Fault diagnosis: blockages, leaks, breaks.
• Pipe repair methods: clamps, sleeves, replacement.
• Manhole repair and rehabilitation.
• Emergency response procedures.
• Temporary bypass pumping.
• Disinfection after repairs.

Objectives:
• Operate and monitor pump stations.
• Troubleshoot pump and control system issues.
• Perform routine pump station maintenance.
• Understand SCADA basics.

Topics:
• Pump types: centrifugal, submersible, positive displacement.
• Pump curves and performance.
• Control panels, level sensors, and alarms.
• SCADA monitoring and alarms.
• Pump station cleaning and debris removal.
• Standby power and generator operation.

Objectives:
• Identify and operate various valves.
• Maintain air valves, washouts, and hydrants.
• Test and exercise valves.
• Replace valve components.

Topics:
• Valve types: gate, globe, butterfly, check.
• Air release and vacuum valves.
• Washout and scour valves.
• Fire hydrants and standpipes.
• Valve exercising programs.
• Valve repair: gland packing, seat replacement.

Objectives:
• Understand environmental regulations.
• Implement spill containment and clean-up.
• Manage odour and corrosion.
• Report environmental incidents.

Topics:
• National Water Act and environmental authorisations.
• Spill containment kits and procedures.
• Odour control: chemical dosing, ventilation.
• Corrosion protection: coatings, cathodic protection.
• Waste management (sludge, debris).
• Incident reporting and corrective actions.

Objectives:
• Communicate effectively with customers.
• Handle complaints and service disruptions.
• Coordinate with local authorities.
• Promote water conservation.

Topics:
• Customer communication protocols.
• Handling sewer blockages and overflows.
• Public notification during planned works.
• Working with municipalities and contractors.
• Water conservation awareness.
• Health and hygiene education.

Objectives:
• Synthesise all course content.
• Complete practical assessments.
• Demonstrate competence in key tasks.
• Prepare for unit standard certification.

Topics:
• Review of key concepts.
• Practical assessment: pipe repair, pump maintenance, safety.
• Written assessment (knowledge test).
• Portfolio of evidence compilation.
• Feedback and improvement plans.
• Certification process and next steps.