Sri Lanka NVQ L3 Plumber study plan
Sri Lanka NVQ L3 Plumber · Give each week a clear focus.
8 weeks · About 7 hours per week
Occupational Health, Safety and Environment on Plumbing Sites & Plumbing Tools, Equipment and Materials
List the personal protective equipment required for at least six plumbing tasks (pipe threading, solvent welding, hot work, confined-space entry, working at height, excavation) and state the specific hazard each item controls
Identify the safety signage, colour codes and warning symbols used on a Sri Lankan construction site and explain what action each demands
Demonstrate the safe set-up and pre-use inspection of a pipe wrench, hacksaw, hammer drill and angle grinder, naming the defect that would make each tool unfit for use
Describe emergency procedures for electric shock, chemical splash to the eye, and a gas cylinder leak, in the correct sequence of actions
Classify plumbing materials (PVC-U, CPVC, PPR, GI, copper, lead-free solder, solvents and primers) by hazard and state the correct storage and handling rule for each
Your checkpoint
A two-page site safety and material-handling checklist covering PPE, tool inspection and chemical storage, written in your own words and usable as a toolbox-talk handout
Pipework Fabrication, Jointing and Fixing (Metal and Plastic) & Setting Out, Measuring and Marking for Plumbing Installation
Read nominal bore, pressure class and standard markings on GI, PVC-U and PPR pipe and select the correct pipe for a given duty from a supplier catalogue
Cut, deburr and thread GI pipe by hand, then assemble a joint with correct thread engagement and PTFE tape direction, checking for squareness
Make solvent-welded PVC-U joints using the correct cut, chamfer, clean, prime and cement sequence, and state the cure time before pressure testing
Set out a pipe run on a wall using a level, plumb line and marking gauge so that fall, alignment and fixing spacing are correct
Calculate pipe lengths and fitting allowances for a simple two-outlet run and produce an accurate cutting list
Your checkpoint
A fabricated and pressure-tested sample assembly (two elbows, one tee, one threaded transition) plus a dimensioned cutting list and a joint-inspection record
Pipework Fabrication, Jointing and Fixing (Metal and Plastic) & Above-Ground Drainage, Soil, Waste and Vent Systems
Fabricate and fix a soil stack with correct bracket spacing, expansion allowance and penetration detail through a wall or slab
Install a P-trap and a branch waste connection with the correct falls for 32 mm, 40 mm and 110 mm pipe
Assemble a vent pipe arrangement that protects trap seals, and explain why each trap in the system needs venting
Identify and correct at least four common drainage faults (wrong fall, missing trap, s-trapping, undersized vent, solvent-weld gap)
Pressure-test and water-test the fabricated drainage section and record the results against the acceptance criteria
Your checkpoint
An installed and tested soil, waste and vent mock-up (stack, branch, trap and vent) with a labelled sketch and a test record showing fall, test pressure or water level, and duration
Cold and Hot Water Supply Installation and Testing & Reading and Interpreting Plumbing Drawings, Specifications and Standards
Interpret a plumbing drawing set: identify plan, riser diagram, schematic, legend, title block and revision status, and extract pipe sizes and fixture counts from them
Trace the cold and hot water route from the main to two fixtures on a riser diagram and mark the valves, non-return fittings and test points
Install a cold water supply run with correct isolation valves, drain-down points and support spacing, then pressure-test it and record the result
Explain the purpose of a storage tank, float valve, expansion relief and non-return valve in a domestic system, and state where each is required
Check a completed installation against the drawing and specification and list every deviation found
Your checkpoint
A marked-up drawing set with the installed route, valve positions and test points highlighted, plus a deviation list of at least five items and a signed pressure-test record
Sanitary Fixtures, Fittings and Appliances Installation & Cold and Hot Water Supply Installation and Testing
Set out and install a WC suite, washbasin and shower with correct centres, heights, falls and sealing, and connect each to hot, cold and waste
Install and adjust a float valve, mixer tap and shower valve so that flow, temperature and shut-off behave correctly
Test a hot water installation for leaks and correct operation, including checking the temperature-limiting device and the expansion arrangement
Diagnose and correct three fixture-level faults: a running cistern, a leaking tap gland and a slow-draining basin
Explain the safe procedure for commissioning a hot water system after installation, including flushing and air removal
Your checkpoint
A commissioning and handover sheet for a bathroom set of three fixtures, listing set-out dimensions, test results, adjustments made and the checks a client should be shown at handover
Maintenance, Fault Diagnosis and Repair of Plumbing Systems & Above-Ground Drainage, Soil, Waste and Vent Systems
Follow a structured fault-finding sequence (gather symptoms, isolate, test, confirm cause, repair, verify) on at least four simulated plumbing faults
Diagnose blockages, leaks, water hammer, low pressure and noisy pipework, and state the most likely cause and the repair method for each
Carry out a repair on a failed joint, a damaged pipe section and a faulty valve, then re-test the system and document the work
Explain preventive maintenance schedules for tanks, traps, valves and exposed pipework, and the records a maintenance visit should produce
Demonstrate the isolation and lock-off procedure before starting a repair on a live water system
Your checkpoint
A fault-diagnosis log of four cases, each with symptoms, tests performed, confirmed cause, repair carried out and post-repair verification result
Workplace Communication, Documentation and Professional Practice & Reading and Interpreting Plumbing Drawings, Specifications and Standards
Prepare a materials take-off from a drawing for a small installation and match it to a priced supplier list
Write a short method statement and risk assessment for one plumbing task, covering sequence, hazards, controls and PPE
Complete a job card, a daily progress record and a snag list using clear, factual language and correct units
Explain the reporting line and documentation required for an accident, a near miss and a defect found after handover
Interpret a specification clause and confirm in writing whether an installed item complies, citing the clause
Your checkpoint
A complete job pack for one small installation: take-off, method statement, risk assessment, job card and snag list, all internally consistent
Occupational Health, Safety and Environment on Plumbing Sites & Plumbing Tools, Equipment and Materials & Reading and Interpreting Plumbing Drawings, Specifications and Standards & Setting Out, Measuring and Marking for Plumbing Installation & Pipework Fabrication, Jointing and Fixing (Metal and Plastic) & Cold and Hot Water Supply Installation and Testing & Sanitary Fixtures, Fittings and Appliances Installation & Above-Ground Drainage, Soil, Waste and Vent Systems & Maintenance, Fault Diagnosis and Repair of Plumbing Systems & Workplace Communication, Documentation and Professional Practice
Revise every domain using a one-page summary per domain, listing the key rules, dimensions and test criteria you must recall
Complete timed practice questions across all domains and review every wrong answer back to the underlying rule
Re-perform the two weakest practical skills identified in weeks 1 to 7 and correct the specific errors found
Rehearse the safety, testing and documentation sequences aloud so they can be explained without notes
Confirm your exam-day logistics, permitted materials and identification requirements
Your checkpoint
A personal revision pack of ten one-page domain summaries plus a scored mock-exam record with a written correction note for every wrong answer
Milestones
Week 2: Fabricate a threaded GI joint and a solvent-welded PVC-U joint unaided, each passing a visual and pressure check, and explain the correct sequence for both without notes
Week 4: Read a riser diagram and plan, extract pipe sizes and fixture counts, install a cold water run to drawing, and pressure-test it with a recorded result
Week 6: Diagnose and repair four faults using the structured sequence, and correctly install and water-test a soil, waste and vent arrangement with correct falls
Week 8: Score at least 75 percent on a full-length timed mock exam across all ten domains, with every incorrect answer traced to the rule it tested