Is Perth Tap Water Safe to Drink? Quality, Taste and Filtration Explained

For many people living in Perth, whether tap water is safe to drink is a question that comes up often: especially given the unique conditions and sources of drinking water in Western Australia.

Some might start researching the topic, only to find articles such as Is Perth tap water safe to drink? which breaks down safety standards and some of the more common tap water concerns. If you’re only looking for the bottom line, we’ve got you covered: Perth tap water is safe to drink. But a better understanding of tap water quality and taste might help you decide whether a water filter is right for your home.

Where does Perth’s tap water come from?

Perth boasts one of the most diverse water supply systems in the country - the water source is a mixture of groundwater, desalinated seawater, and surface water collected in dams.

Recent low rainfall has made desalination particularly important. Seawater is run through specialised filtration equipment to remove salt and other impurities, resulting in crystal-clear drinking water that meets or exceeds national water quality guidelines. Groundwater is taken from naturally occurring aquifers and filtered before being pumped to residences.

Of course, because Perth’s drinking water contains such a variety of sources, the exact composition of tap water is subject to change at different times of the year, as well as from one area of the city to another. This variability is one of the reasons that some Perth residents might be able to taste the difference.

Is Perth tap water safe to drink?

Perth tap water is safe to drink and is fully compliant with national guidelines for drinking water quality. Water supply companies conduct regular testing to ensure the water is free from harmful bacteria, off-tastes, and impurities.

To keep drinking water safe, treatment facilities add disinfectants like chlorine - an important safety measure that works to kill bacteria and other microorganisms in water pipes. While the taste of chlorine might be unpleasant for some people, it’s the best defence against invisible threats that would otherwise make the water undrinkable.

From time to time, you might notice changes in the taste or quality of your drinking water, but these are generally short-term problems caused by events like a water main break or ongoing maintenance to the supply system. If any treatment changes do affect water safety, supply companies are quick to alert customers.

Why does Perth tap water sometimes taste bad?

It’s one thing to say that the water is safe to drink, but quite another if you dislike the taste. The most common one is chlorine, which can give Perth tap water a distinctive chemical taste or odour. Many people pick this up in the water they drink, and can be especially sensitive to it.

Mineral content also matters. Groundwater resources contain naturally occurring minerals that may impart a subtle taste, while desalinated water often has a cleaner profile, albeit occasionally a bit “flatter” due to a lower mineral content.

Changes relating to where the water originates from in the pool of sources can also impact the end result. Changes in the mix of groundwater, dam water, and desalinated water sources will yield changes in taste.

Do You Need a Water Filter in Perth?

Is a water filter needed from a safety standpoint? No, although many people do use a filter to improve taste and experience. Most people think the salty, chemical-like taste of chlorine is not “nice” and use filters to strip that away, resulting in a more neutral taste.

A simple water filter jug or tap-mounted system can strip away the taste of chlorine for little expense. Under-sink or reverse osmosis systems can filter more deeply, providing water of greater purity, and are popular for this reason.

For the most part, though, if people choose to filter their water, it is a subjective decision rather than a need. If you have the desire to taste your tap water neat, there is no need to change the way you do things.

How to Improve Tap Water Taste at Home

If you aren’t concerned with expending the effort necessary to install a whole filtration system, there are also several simple things you can do to have a better water experience at home. Leaving water to sit for a bit will allow chlorine to evaporate naturally, but it may still exceed the taste threshold for chlorine without a proper filtration system. Furthermore, chilling water in the fridge improves the taste and smell in most situations.

Beyond this, a simple water filter jug is a very user-friendly way to improve your final product with minimal bother. Keeping taps and plumbing clean around the house can also help prevent tap water from taking on unwanted scents and smells in the wash.

Enjoying Drinking Water in Perth

Perth’s drinking water is perfectly regulated and 100% safe to drink each and every day. Some variance in taste might differ from one person to the next. Regardless of the final product, though, there is no call to fix things from a health-based perspective.

However you choose to enjoy drinking water, the good news is that most people across Perth have reliable, secure, high-quality drinking water on tap. Some people prefer further purification for specific reasons, such as removal of fluoride. How you drink it, ultimately, is up to you.

How Water Hardness Affects the Water Supply in Perth

Water hardness can have an impact on both the taste and function of your tap water. Perth water, especially groundwater, tends to have more calcium and magnesium, minerals, which are largely responsible for its hardness. The main difference you may notice in hard water occurs when using it to wash dishes or brush your teeth. Using water filtration systems specially designed to assist in lessening the impact of water hardness can help to protect your appliances, give you a sweeter-tasting cup of coffee, and protect your hard-earned money from being spent on another plumbing fixture replacement.

When to Contact a Professional Plumber to Test Your Water Supply

Perth has strict regulations and guidelines for its water supply, but you might want to consider an independent water test. If you live in an older home, your internal plumbing system may be causing the poor quality of your water. The water test kit or professional water testing services can check for anything from extra minerals, as mentioned above, your pipes could be in the early stages of corrosion of metal piping or something not usually found in the environment. While uncommon, an independent water test can bring you peace of mind after receiving the effective solution. After plumbing up, choose a water filtration solution that best meets your needs.