Cert III Plumbing case studies
Cert III Plumbing · Put your knowledge to work in context.
The Certificate III in Plumbing (CPC32420) is the trade qualification that sits behind licensed plumbing work in Australia. It is built for apprentices working under supervision, for adult career-changers entering the trade, and for people already on site who need their skills formally recognised. The Cert III Plumbing case studies are 5 cases and about 2,279 words.
1Blocked Stack and Overflow in a Three-Storey Townhouse
A plumber is called to a three-storey townhouse where sewage has backed up into the ground-floor shower. The ground-floor fixtures drain slowly, while the first and second floors drain normally.
463 words, about 2 min2Copper Supply Line Pressure Loss After a Renovation
During a kitchen renovation, a plumber has extended an existing copper cold-water line to serve a new sink and dishwasher. The original line is 15 mm copper fed from a 20 mm main at 350 kPa static pressure.
464 words, about 2 min3Trench Collapse Risk on a Boundary Sewer Connection
A crew is laying a 150 mm sewer line to a new dwelling. The trench runs 1.8 m deep along a side boundary, 1.2 m from an existing brick fence footing and within 2 m of a mature tree.
476 words, about 2 min4Soldered Joint Failure on a Gas Line
A plumber is pressure-testing a new 20 mm copper gas line run to a cooktop and a continuous-flow hot water unit. The line has 14 soldered joints and runs 18 m with several bends.
463 words, about 2 min5Condensate Leak and Ventilation Complaint in a New Build
A client in a newly built home reports persistent condensation on bedroom windows and a musty smell in the main bathroom. The house has a ducted reverse-cycle system with a return air grille in the hallway, two bathroom exhaust fans ducted to the roof space, and a continuous-flow hot water unit in a cupboard.
413 words, about 2 min