What's Your Responsibility vs. SA Water's
One of the most common sources of confusion for Adelaide homeowners is working out who's responsible for what when a plumbing problem appears. The boundary is clear, though not always obvious:
- SA Water's responsibility: Everything up to and including the water meter at your front boundary. If there's a burst main in the street, or the meter itself is faulty, that's SA Water's problem — report it on their 24-hour line (1300 SA WATER).
- Your responsibility as the property owner: Everything from the meter into your home. This includes the supply pipe running from the meter to the house, all internal pipes, hot water systems, fixtures, and your drainage system all the way to the sewer main in the street.
The sewer main in the street is SA Water's responsibility — but the drainage pipes from your home to that main are yours. In older Adelaide suburbs, those drain pipes are often clay and prone to tree root intrusion.
Know Where Your Shutoff Valves Are
Every Adelaide homeowner should know the location of three key shutoffs before they need them in an emergency:
- Main water meter valve: At your front boundary, usually set in the ground with a small lid. Turns off all water to the property. Locate this now.
- Internal stopcock: A valve inside the home (often under the kitchen sink, in a meter box, or near the hot water system) that isolates the internal supply without needing to shut off at the meter. Useful for repairs to individual sections.
- Hot water system isolation valve: A valve on the cold water inlet pipe feeding your hot water system. Allows you to isolate the hot water system without cutting off cold water to the rest of the house.
Spend five minutes this weekend locating each one and testing that they turn freely. An unused valve that seizes when you need it most is a real problem.
DIY vs. Licensed Plumber — Know the Line
In South Australia, unlicensed plumbing work is illegal under the Plumbers, Gas Fitters and Electricians Act 1995. It can void your home insurance and lead to significant fines. Here's a practical breakdown:
- Replace tap washers and O-rings
- Replace showerheads and tap aerators
- Clean P-traps under sinks
- Plunge a blocked drain or toilet
- Replace toilet cistern internals (ballcock, float valve)
- Connect appliances to existing outlets (dishwasher, washing machine)
- Any new pipe installation or extension
- Moving or replacing fixtures (toilet, basin, shower)
- Hot water system installation or replacement
- Drainage work beyond unblocking
- Any gas work (licensed gas fitter required)
- Anything behind walls or under slabs
Most home insurance policies explicitly exclude damage caused by unlicensed plumbing or gas work. If a DIY hot water installation fails and floods your home, your insurer may decline the claim entirely. Always use a licensed plumber for any work beyond minor maintenance.
Annual Plumbing Maintenance Schedule
Most plumbing failures are predictable and preventable. This schedule covers the key checks for an Adelaide home — adapted for our climate and common pipe materials in the local housing stock.
| Frequency | Task | What to look for |
|---|---|---|
| Monthly | Check under sinks for moisture | Drips, staining, or condensation on P-trap and supply lines |
| Monthly | Run water through infrequently used drains | P-traps can dry out, allowing sewer gas in — run water through spare bathroom and floor drains |
| Every 3 months | Test pressure relief valve on hot water system | Lift the lever briefly — water should discharge, then stop cleanly. If it doesn't release or keeps dripping, replace it. |
| Every 6 months | Check SA Water bill for usage anomalies | Increases that don't match usage changes can indicate a hidden leak |
| Annually | Test main shutoff valve | Turn it off and on to ensure it operates freely — seized valves can't help you in an emergency |
| Annually | Clean drain strainers and aerators | Remove and soak in white vinegar to dissolve mineral build-up (especially important in Adelaide's hard water areas) |
| Every 5 years | Hot water system inspection | Check anode rod condition — a plumber can inspect this during a service call |
| On purchase | Pipe condition assessment (pre-1980 homes) | Galvanised steel pipes in homes built before 1980 may be nearing end of life — a condition report tells you where you stand |
SA Plumbing Regulations Homeowners Should Know
You don't need to know the technical standards — but these regulatory realities affect decisions you'll make as a homeowner:
- All plumbing work requires a licensed plumber. The exception is minor maintenance (washer replacement, cleaning). Any new installation, modification, or repair beyond minor maintenance must be done by a holder of a current SA plumbing licence.
- Certificates of compliance. Licensed plumbers must issue a Certificate of Compliance for prescribed plumbing work. Ask for it and keep it with your home records — you'll need it for insurance claims and when selling the property.
- Hot water temperature regulations. Hot water systems in SA must be set to store at 60°C minimum (to prevent Legionella growth) and deliver at 50°C maximum at outlets used by young children or aged care residents. Standard home systems are typically set to deliver at 50–55°C.
- Rainwater tank connections. If you connect a rainwater tank to your home's plumbing (for toilet flushing or laundry), this must be done by a licensed plumber with appropriate backflow prevention — it cannot be directly connected to your drinking water supply.
- Greywater systems require council approval and compliant installation. Unsanctioned greywater disposal to garden areas can attract fines.
Questions About Your Adelaide Home's Plumbing?
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