If you’re replacing fixtures or planning a bathroom update this year, you’ve probably come across the term WELS. It stands for Water Efficiency Labelling and Standards — Australia’s national rating system for water-using products like toilets, taps, and showers.
WELS ratings go from 1 star (least efficient) to 6 stars (most efficient). Every WELS-labelled product also shows exactly how much water it uses: litres per flush, litres per minute, or litres per cycle. These aren’t just optional figures; they’re backed by federal law and enforced nationally. If it doesn’t have a WELS rating, it shouldn’t be on the shelf or in your home.
But beyond the regulation, WELS ratings offer something practical — a way to reduce your water bill without changing your habits. If your home is running on older plumbing, you’re likely paying more than you should. And as water prices continue to rise, that gap only gets wider.
The Hidden Cost of Outdated Plumbing
Old plumbing doesn’t just look tired — it costs more to run, uses more water, and causes more headaches.
Common signs your home is inefficient:
- Toilets that flush too much water or constantly run
- Showers that fog up the room in seconds and blast out 15–20L per minute
- Taps that spray, drip, or can’t control flow properly
- Leaks you don’t see but still pay for
- High water pressure that wears down appliances and pipework
You don’t need a full bathroom renovation to fix these. You just need to replace the right parts.
Practical Eco Upgrades That Actually Work
1. Modern Shower Heads
Old shower heads are water-wasters. New designs give the same pressure but use far less water.
Benefits:
- 7–9 litres per minute (instead of 15+)
- Lower hot water usage, which also cuts power bills
- Simple install — no plumbing overhaul needed
This is the single easiest upgrade for water efficiency and comfort combined.
2. Water-Efficient Toilets
Still using a 6L or 9L flush? That’s hundreds of litres wasted every week.
Modern dual-flush units:
- Use 4.5L full / 3L half flush
- Include rimless designs that clean better with less water
- Comply with current WELS standards
- Are available in both standard and smart toilet models
We’ve written a full breakdown on smart toilets here:
Smart Toilets: Worth It in 2025?
3. Fix the Slow Leaks
These are the silent killers of water efficiency. A dripping tap or leaking cistern can waste tens of thousands of litres a year.
What we check and replace:
- Worn flush valves and inlet valves
- Tap washers and mixer cartridges
- Flexible hoses under sinks and basins
- Toilet cistern seals and rubbers
You’ll often recover the cost of the fix within a few billing cycles.
4. Pressure-Reducing Valves
Many older homes have water pressure that’s too high. That means:
- Faster wear on taps, mixers, and appliances
- Higher water flow with no gain in performance
- More leaks over time
A pressure-reducing valve or fixture-based regulator slows things down, protects your plumbing, and reduces consumption without changing how the system feels to use.
5. Smart Garden Irrigation
If you’re watering by hand or using basic timers, you’re probably wasting water outside.
Smart controllers offer:
- Timed watering at dawn or dusk
- Rain delay and soil moisture control
- More consistent water use and lower runoff
This is a perfect upgrade for homes with lawns, gardens, or irrigation zones — especially in hot months.
Bundle These Changes and You’ll See the Difference
None of these upgrades require a renovation. They’re quick to install, proven to save water, and backed by the WELS rating system. Together, they add up to:
- Lower quarterly bills
- Less wear on your plumbing
- Greater compliance with future building and energy efficiency standards
Final Word
Water efficiency isn’t about fancy gadgets or going off-grid. It’s about using less without sacrificing function. With a few smart upgrades, most homes can reduce water use by thousands of litres each year — and save money doing it.
If you’re ready to bring your plumbing up to standard, contact RJT for advice — we’ll point you in the right direction with upgrades that work and won’t blow out your budget.
