Something has gone wrong with the water. Start by working out what.

On the gas range the number is first hour delivery; on the electric range it is the tank. Getting that backwards is how two quotes stop being comparable.

A quote that says Bosch names the maker and nothing about the system. The type, the volume or flow rate and the siting are what you are really buying.

Brand is the first thing people shop for and close to the last thing that matters. The major names here sell the same six or seven kinds of system as each other: so the badge cannot make the decision that is actually in front of you.

Most people meet this brand at the quote stage, where a single line reads Dux Ecosmart and sounds like a product. It is a family name that spans a heat pump and two different solar systems: three installations with three different sets of site requirements.

Both collect heat from the sun and pass it to your water. The difference shows up in cold weather, in hail country and in what can be repaired.

It is the valve that is supposed to let water out. Understanding that one fact sorts out most arguments about a hot water system that leaves a wet patch on the ground.

Every installer recommends the type they fit. The honest version is that your house decides most of it: gas connection, outdoor space, roof aspect and how many showers run at once.

Two showers at once is the question that separates the two types, and the answer is a number the brochure quotes optimistically. Here is what that number means, and what changes if you are on bottled LPG.

The efficiency claim is real, and it is not the interesting part. What sinks a heat pump installation is almost always physical: where the compressor noise lands, how much air it can draw. And what happens on a 2 °C morning.

Sometimes, but it is the exception. A heat pump needs a lot of air and it produces cold air and water. Here is why that rules out most rooms.

The word is more common overseas, but the thing is familiar: an insulated tank that stores hot water. What matters is how it is built and how it is supplied.

Same tank, three names, depending on where you learned the word. Only one of them connects you to Australian rules and Australian parts.

Same appliance, different vocabulary: and the vocabulary is a clue to what's legal for a homeowner to touch here.

A timer on a hot water system cuts heating hours, not the heat you use. For many households the saving is smaller than the sales pitch suggests.

The word promises hot water the moment you open the tap. What it actually means is that nothing is stored: which fixes one problem completely and introduces a different one that nobody mentions until the second shower goes weak.

Legionella thrives in lukewarm water. A hot water system that stays properly hot is part of the answer, but you do not adjust it yourself.

An LPG system is a gas system fed from bottles or a tank. The hot water works the same way, but the fuel supply is now your problem.

Off peak hot water only works if your tank holds enough to last the day. Here is how the arrangement works, what it needs, and when to question it.

A recirculation pump trades a long wait at the tap for extra heat loss and power use. Whether that is a good trade depends on your pipe run.

Choosing Rheem narrows almost nothing. The range covers gas, electric, heat pump and solar. The useful questions are which one is on your wall, and whether it is repairable.

Most people arrive at this brand through the word Infinity and assume it means one product. It is a family name inside a range that also includes heat pumps, solar and storage tanks. So picking Rinnai still leaves the real decision unmade.

The booster decides what a solar system costs you to run. Before that, two other choices decide whether it fits your roof at all.

The collectors on the roof are the part you can see. The part that determines whether the system saves you anything is the booster in the tank, and the mode it is left in.

A quote that says Thermann tells you the badge and nothing about the system. Storage, continuous flow, solar and heat pump are four different installations with four different sets of site needs.

The flue is the pipe or vent that takes combustion gases away from a gas hot water system. You can look at it, but you cannot fix it.

Every sizing chart starts with "how many people". That is the wrong question, and it is why a household of three can run out while a household of five never does. What decides it is your busiest twenty minutes.

One glass and two minutes tell you whether it is air or something worse. Here is how to read it, and where to stop.

Two failures at once usually mean one cause. Here is how to find the shared link, and where to stop.

Four faults cover most dead electric systems. Two you can rule out at the switchboard. The other two sit behind a cover you must not open.

Name the symptom first. It decides which part is at fault, who you call and whether a new system is even on the table.

A hot water system that leaks is not automatically a hot water system that needs replacing. Where the water is coming from tells you whether this is a valve, a fitting or the end of the tank.

If hot runs at the kitchen sink and not at this tap, your hot water system is working. The fault sits in the last metre of pipe, and that changes who you need to call.

If the cold water is fine and the hot is a trickle, the problem is not your mains pressure. That single observation rules out half the possible causes before anyone opens a toolbox.

A system that produces warm water is still working. Something is either not taking it all the way up, or blending it back down before it reaches you. And which of those it is decides who you need to call.

Repair or replace, which type, what size and what every quote should include. Sort these first and the price comparison gets easy.

Work out whether the fault is yours or the building's before you call anyone. It changes who fixes it and who pays.

If the kitchen tap runs hot and the shower does not, your hot water system is working. The fault is in the last two metres of pipe, and that changes both the diagnosis and who you need to call.

The cause is usually one of six things, and which six depends on whether your system is electric, gas or a heat pump. Two of them you can check in five minutes without tools.

The relief valve is the one part of a hot water system designed to let water out. That makes "is it leaking?" the wrong question. The right one is when it discharges, and for how long.

Rusty or brown water is not a plumbing mystery. It is an iron problem, and the only real question is where the iron is coming from. Run the cold tap first and you have narrowed it to one of two answers.

The smell is hydrogen sulphide, and in a storage system it almost always comes from the tank rather than the water supply. One test tells you which one you have.

A failed element and a thermostat that has drifted look identical from outside the cabinet: and the most commonly missed cause in Australia is not a fault at all.

Most hot water systems ask very little of you. A few quick looks each year catch problems early, and the rest belongs to a licensed plumber.

The water you run down the drain waiting for hot is decided by the distance between the heater and the tap. Most devices sold to fix that are managing the symptom, and they manage different ones.

A storage tank rarely dies of old age. It dies because a part designed to be replaced was never replaced, and nobody told the owner it existed.

When a tank leaks or a pipe bursts, you want the water and the heat stopped fast. Here is what is yours to do, in the right order.

A jacket on the tank sounds like an easy win. Sometimes it is. On many modern systems it is pointless, and on some it is a hazard.

It is the small valve on the cold water line to your system. And on the day a pipe or tank leaks it is the first thing worth reaching for. Most owners cannot say where theirs is.

It is a small brass valve with a lever and a pipe running away from it. It exists for the one day everything else fails, and a surprising number of owners have been tempted to cap it.

It is a metal rod hanging inside your cylinder, quietly dissolving so the steel around it does not. When it is gone, the tank starts rusting: and that is the point at which most Australian hot water systems die years earlier than they had to.

It is the smallest part on a hot water installation and the one that explains the strangest symptom in the house. A bathroom that runs lukewarm while the kitchen is scalding.

It is a short metal probe that sits in the flame. When it fails, the gas shuts off and your hot water goes with it, and that is exactly what it is designed to do.

Stored temperature and delivered temperature are two different things, set by two different parts. Almost every piece of bad advice about hot water starts by confusing them.

A warranty document is a set of conditions, not a promise. Most of what voids one is either never installed correctly in the first place, or never checked afterwards.

Where the water comes from tells you the part. Getting that right is the difference between a five-minute job and fitting three washers into a tap that will keep dripping.

Before anything else, find out whether the blockage is in the pan or further down the line. Plunging a main-line blockage does not clear it: it pushes sewage back through the lowest fixture in the house.

The most useful test in drainage is free: run water at several fixtures and watch what else reacts. It tells you how far down the blockage is before anyone puts a camera in.

If your main line blocks around the same time each year, you almost certainly have roots. Clearing them is maintenance, not a repair: and knowing the difference is what stops the annual bill.

Before anyone opens a wall or quotes for leak detection, your meter will tell you free whether you have a leak at all. And roughly whose it is.

A bore is a hole in the ground with a pump at the bottom. Most of the trouble starts with what nobody measured before the pump went in.

Stop using the water first. Everything else can wait ten minutes.

Most houses use one of a few standard sizes. The right one depends on the roof area it drains and how hard it rains where you live.

The first rain after a dry spell carries the most dirt. A diverter keeps it out of your tank.

A small valve decides whether your tank tops up quietly or runs the mains all night.

Every tank follows the same path. Once you can name each part, faults get much easier to read.

Sludge builds up slowly and you rarely see it. The tap water tells you first.

The colour is a warning label. It tells you the water in the pipe is not for drinking.

A pressure pump is only as good as its switch and its vessel. The motor is the least interesting part.

Watering the garden from a tank is simple. Plumbing tank water into the house is where backup supply, cross-connection and testing begin.

Most tanks are sized by the gap beside the house. The honest order is roof area first, then what you intend to use it for, and only then what fits.

Water weighs a tonne per kilolitre. The base has to carry that, evenly, for decades.

Where the water appears tells you most of what you need to know. Look before you touch.

Ten minutes of checking now and then saves a dirty tank and a burnt-out pump.

Overflow is a symptom, not a fault. Work out where the extra water is coming from before you touch anything.

Start with the tank level and the power. Most dead pumps are one of those two.

The pump is the part of a tank system that wears out. Choosing the wrong type is the usual reason it does.

Tank water can flush a toilet and fill a washing machine, if a licensed plumber connects it properly.

No single filter fixes everything. Work out what is wrong first, then pick the treatment.

Material decides how long a tank lasts, how it fails and where it can go.

The difference is whether the downpipe stays full of water between storms.

Orange marks on paths, walls and basins are common where bore water is used. They are mostly cosmetic, but they point to what is in your water.

Brown water looks alarming, and it is often harmless and short-lived. The trick is working out whether the problem is outside your property or inside it.

Carbon is the cheapest way to make tap water taste better. It is not a cure-all, and an overdue cartridge can make things worse.

A pool smell from the tap is annoying, but it usually means the disinfectant is doing its job. Here is what is behind it and the cheap fixes first.

Milky water is common and usually harmless. A clear glass and two minutes will show you which kind you have.

A dam is open to animals, runoff and algae. That makes it handy for stock and the garden, and a poor bet for the kitchen tap.

Most people ask about hard water because they've heard it's bad to drink. In Australia that's the wrong worry. The real cost shows up years later, inside a hot water system that failed early.

Bore water can look perfect and still be unsafe. Looking, tasting and smelling tell you nothing about what is in it.

There is no answer to this question that applies to every tank. There is an answer for your tank, and it comes from a laboratory, not from a website.

White crust on taps and showerheads is harmless but annoying. A mild acid and some patience handle most of it.

Water that is fine for the garden can make you sick in a glass. Knowing which pipe carries which water is the whole game.

It is the most thorough domestic filtration there is, and for a lot of Australian households on mains water it is solving a problem they do not have. The useful question is never "is RO good" but "what is in my water".

The cupboard under a kitchen sink can hold four genuinely different technologies wearing the same label. Picking one without knowing what's in your water is a guess dressed up as a decision.

You do not need a laboratory to learn whether your water is hard. A water report, a cheap kit or a simple soap test will get you most of the way.

A softener fixes scale, not taste or safety. Whether you need one depends on how hard your water is and what the scale is costing you.

A metal taste is rarely an emergency, but it is a clue. Where and when you taste it points to the cause.

It is groundwater, not mains water. What is in it depends entirely on the ground it came from.

Fitted to the mains line instead of a single tap, a whole-house filter treats everything from the shower to the garden hose. That scope is also its limit: it isn't built to do what a kitchen filter does.

It is the one document that proves licensed work was done to the standard. Here is which jobs need one, why it matters, and what to do if it goes missing.

Reusing shower and laundry water on a garden sounds simple. The rules differ by state and territory, and most of the work is licensed plumbing.

No sewer connection means the wastewater is treated on your block. Here is how that works, what goes wrong and who has to do the work.

Most home repair content online is written for the US or the UK, where this line sits somewhere else entirely. In Australia it is drawn tightly, and it is drawn by your state: not nationally.