Wastewater Reticulation System Problem Investigation Training

Objectives:
• Understand the components and layout of wastewater reticulation systems.
• Identify common problems in reticulation systems.
• Explain the purpose and scope of problem investigation.
• Relate unit standard requirements to daily work.
• Apply safety protocols when inspecting systems.

Topics:
• Overview of wastewater reticulation systems: pipes, manholes, pumps, and valves.
• Types of wastewater: domestic, industrial, and stormwater.
• Common system problems: blockages, leaks, odours, and structural failures.
• Introduction to problem investigation: systematic approach.
• Relevant legislation and standards (SANS, SAQA).
• Health and safety considerations: confined spaces, hazardous substances.
• Roles and responsibilities of a reticulation technician.
• Documentation and record-keeping basics.

Objectives:
• Describe the function of key system components.
• Apply basic hydraulic principles to diagnose flow issues.
• Interpret system drawings and schematics.
• Use flow measurement devices correctly.
• Identify signs of hydraulic overload or underload.

Topics:
• Detailed study of pipes: materials, diameters, gradients.
• Manholes: types, construction, inspection points.
• Pumps and lift stations: operation and common faults.
• Valves: gate, non-return, and pressure relief.
• Hydraulic principles: flow, velocity, head loss.
• Flow measurement: weirs, flumes, meters.
• Reading and interpreting reticulation plans.
• Practical exercise: calculate flow in a simple system.

Objectives:
• Conduct systematic visual inspections of reticulation components.
• Use appropriate tools for data collection (CCTV, flow logs).
• Gather and record accurate field data.
• Identify symptoms vs. root causes.
• Prioritise problems based on severity and impact.

Topics:
• Visual inspection techniques: manhole entry, pipe condition.
• CCTV inspection: operation, interpretation of footage.
• Flow monitoring: data loggers, interpretation of trends.
• Sampling techniques for wastewater quality.
• Recording observations: forms, digital tools.
• Symptom analysis: blockages, surcharging, odours.
• Root cause analysis: tree roots, grease, structural defects.
• Prioritisation matrix: risk, frequency, cost.

Objectives:
• Select and apply diagnostic tools for specific problems.
• Perform smoke and dye testing to locate faults.
• Analyse hydraulic data to identify system constraints.
• Interpret CCTV reports and correlate with field observations.
• Use GIS and asset management systems for problem analysis.

Topics:
• Smoke testing: procedure, safety, interpretation.
• Dye testing: tracing flow paths, detecting cross-connections.
• Hydraulic modelling basics: software tools, data input.
• CCTV report analysis: defect coding, severity grading.
• GIS applications: mapping problems, asset history.
• Pressure testing: isolating sections, leak detection.
• Flow capacity analysis: comparing design vs. actual.
• Practical exercise: diagnose a simulated problem.

Objectives:
• Evaluate potential solutions based on technical and cost factors.
• Design remedial actions for common problems.
• Prepare a basic action plan with timelines.
• Consider environmental and regulatory constraints.
• Communicate findings to stakeholders effectively.

Topics:
• Solution options: cleaning, repair, replacement, rehabilitation.
• Cost-benefit analysis: lifecycle costs, urgency.
• Designing remedial actions: specifications, materials.
• Environmental impact assessment: discharge, odour.
• Regulatory compliance: water use licences, bylaws.
• Action planning: tasks, resources, schedule.
• Reporting: structure, audience, recommendations.
• Case study: develop a solution for a real scenario.

Objectives:
• Monitor implementation of remedial actions.
• Conduct post-remedy inspections to verify effectiveness.
• Apply quality assurance procedures.
• Document outcomes and lessons learned.
• Adjust plans based on monitoring results.

Topics:
• Monitoring techniques: flow, level, quality parameters.
• Post-remedy inspection: visual, CCTV, pressure tests.
• Quality assurance: standards, checklists, sign-offs.
• Documentation: as-built drawings, maintenance logs.
• Lessons learned: feedback loop for future investigations.
• Performance indicators: flow rate, blockages reduced.
• Troubleshooting incomplete solutions.
• Practical exercise: inspect and report on a remediated site.

Objectives:
• Integrate all skills into a comprehensive investigation.
• Complete a full problem investigation from start to finish.
• Demonstrate competence in a simulated scenario.
• Understand continuous improvement and professional development.
• Prepare for unit standard assessment.

Topics:
• Full investigation simulation: problem assignment, field work, analysis, solution.
• Presentation of findings and recommendations.
• Peer review and feedback.
• Unit standard assessment preparation: evidence requirements.
• Professional ethics and responsibility.
• Resources for continued learning: manuals, courses, networks.
• Recap of key concepts over the week.
• Final assessment: written and practical components.