Indoor water is the part of an Australian household you can change without a tank permit. Your Home and the WELS Water Rating scheme already describe the fittings and the habits. This guide is a longer briefing for people who want to brief a plumber or write a house rule. It will not invent a dollar saving for your retailer.
Answer first
Fix the leak. Read the WELS label on the next tap, shower, toilet or washer you buy. Take shorter showers even with an efficient rose. Run full loads on the listed efficient cycle. Do not rinse the river off a plate. Then, and only then, talk about rainwater on the reuse guide.
Why the label exists
The Water Efficiency Labelling and Standards scheme requires certain products sold in Australia to be rated and labelled. Your Home summarises the point: more stars mean greater water efficiency, and the label also shows the flow or the consumption figure. Taps, showers, toilets, dishwashers, clothes washers and flow controllers sit in that world. Minimum standards also exist so the worst fittings are harder to install. The plumbing code conversation and WELS sit together; a licensed plumber lives in that overlap.
Your Home also records scheme-level statements about household savings from choosing efficient products. Read those sentences on Your Home if you want the official wording. This guide will not recycle them as if they were your last bill.
Showers
Your Home calls the shower one of the easiest indoor places to cut use. An inefficient rose can sit in a high litres-per-minute range; a high-WELS rose can sit much lower. Those ranges are Your Home’s. The label’s flow figure is what you compare when two roses look equally shiny.
Time still matters. A long shower through an efficient rose is still a long shower. Your Home mentions timers as a habit tool. Mixer taps reduce the waste of hunting for a temperature. Tempering and scald safety are plumbing and health rules. Do not disable a safety device to chase a flow number.
Renters should ask before swapping a rose that is not an obvious screw-on. Some mixers are not compatible with every low-flow rose. A plumber’s five-minute job is still a plumber’s job when the existing fitting is unusual.
Taps and leaks
A dripping tap is not a personality. It is a washer, a seat, or a cartridge. Put a jug under it if you need to convince a household sceptic. Hot drips are also energy. Garden bibbs that weep all winter are outdoor leaks that belong in the same hunt.
Kitchen mixers with a useful aerator can feel the same while using less. Do not assume every aerator fits every thread. Basin taps in guest bathrooms are often left dripping because nobody “owns” them. House rules should name the person who reports the drip.
A leaking cistern can waste more than a family’s shorter showers. The dye-tablet test is an old plumber’s trick; a licensed person should replace the inlet if it is not a simple float.
If you have a meter, take a reading with everything off. Movement means a leak hunt. If you do not have a readable meter — many apartments — use eyes and ears.
Toilets
Dual-flush toilets only save water if people use the half flush for the half job. That sentence is not cute; it is the entire user-interface design. Older single-flush cisterns are a replacement conversation when the pan or the cistern is finished. WELS exists for toilets too. A plumber should match the suite; a mismatched pan and cistern is how bathrooms leak into ceilings.
Do not put a brick in a cistern because a grandparent did. Modern cisterns are not that cartoon.
Appliances that wash
Clothes washers and dishwashers wear two labels. Energy Rating talks about electricity. WELS talks about water. The efficient cycle is both. Full loads, or the half-load setting the machine actually has, beat a moral lecture. Your Home says to scrape, not rinse. That is the whole plate ritual.
Front-loaders and top-loaders have different water stories; the label is still the comparison. A dead machine is the time to buy. A working machine is the time to change the cycle.
Habits that survive a rebrand
Shorter showers. Taps off while brushing. Full loads. Kettles filled for the tea you will drink — that one is energy as well. Watering the indoor plant from the rinsed-pasta pot if the sauce is not a science experiment. None of these need a statistic from us.
Greywater buckets from the shower are a back-health and slip hazard. If you do them, do them briefly and legally. Permanent reuse is a plumbing document, not a bucket personality.
Briefing a plumber
- Which fitting leaks or is finished
- Whether the household rents
- Photos of the existing rose, mixer and toilet
- A request for WELS-rated replacements that fit the existing plumbing
- A request not to disable tempering or other safety devices
- A question about pressure-limiting if the house has wild pressure
Attach Your Home’s reducing-water-use page. Attach this guide if you want a longer letter. Do not attach a spreadsheet of invented litres.
How this sits with outdoor water and energy
A water-efficient house with a thirsty lawn has only finished the bathroom. The gardens hub and the waterwise garden guide cover soil and hydrozoning. A water-efficient shower with an ancient resistance tank has still done a useful energy thing; the hot-water guide covers the heater.
Utilities sometimes rebate fittings. Those dollars change. Use the utility page. energy.gov.au will not always be the water-rebate door; your retailer or state water agency might be.
The water hub is the short map. This article is the indoor briefing. Keep the label, fix the washer, and do not rinse the river.
Apartments, visitors and the guest bathroom
The tap nobody “owns” is the tap that drips. Write the house rule on the cistern lid if you must: half flush, report drips, full loads. Visitors follow signs more reliably than lectures. Holiday lets should put the WELS story in the book next to the wifi password — as courtesy, not as a guilt trip.
If the building has central hot water, a long shower is a shared bill and a shared heater. Say that without inventing a dollar. The physics is enough.
Buying a washer or dishwasher without a lifestyle ad
Measure the niche. Read both labels on the exact model. Ask whether the household will run full loads. A smaller machine that is actually filled can be the adult choice. A larger machine that runs half empty is a water feature.
Delivery and take-away of the old machine is a waste event. Book the e-waste or council path before the new box arrives. Do not leave a dead washer on the nature strip and call it a gift.
When a plumber offers a tapware range, ask for the WELS stars and the litres figure, not the finish name. Chrome does not save water. The label might.
Your Home’s habit list still sits beside the receipt: scrape, full loads, shorter showers. The receipt does not retire the habits. That is the sentence most catalogues skip.
Sources to keep open while you act
Keep Your Home, energy.gov.au, Energy Rating, Water Rating, NatHERS, DCCEEW and your state EPA in the same browser window as this guide. If a sentence on this domain ever sounds more specific than those pages, believe those pages.
That habit is the guest-post standard as well. A green-living article that cannot survive a source click is a press release. A green-living article that sends a household to WELS, a council bin list, or the NCC explanation on DCCEEW is doing the civic job.
Tenure, climate and the refusal to average you
A renter in a humid coastal flat and an owner in a frosty tableland town should not receive the same shopping list. This guide therefore repeats climate and tenure more often than it repeats adjectives. Your Home’s climate notes and NatHERS climate files exist because Australia is not one weather. Council waste pages exist because Australia is not one contract. Plumbing and health rules exist because reuse is not one hose.
If you want a number — a rebate, a litre claim, a star target for a new home — take it from the agency that has to stand behind it. DCCEEW’s residential-buildings page is explicit about NCC 2022 thermal settings for new homes and about states adopting on their own clocks. Your Home is explicit about WELS flow ranges for showers. We cite those and stop.
A closing procedure
Write the next action on paper. Name the official URL. Name the person who will do it. Name the licensed trade if a wall, a gas line, a wet area or a switchboard is involved. Then close this tab.
The matching hub on this site stays the short map. The contact form stays the correction path. The footer disclaimer stays the legal mood: general information, not professional advice, and no invented partnership with the trademarks we cite.