Pool Supplies Byron Bay
Free Pool Water Testing
One of the most valuable things we offer at our Mullumbimby pool shop is free coin-disc water testing. Most pool problems start with a water imbalance that is invisible to the naked eye. Your pool might look fine on the surface but have pH levels, alkalinity or sanitiser readings that are slowly causing damage to your surfaces, your equipment or the health of anyone swimming in it.
Our water testing service takes the guesswork out of pool care. Just collect a 500 ml sample of your pool water in any clean bottle or container. For the most accurate results, take the sample from elbow depth and away from the pool returns. Drop it into our Station Street shed during business hours and we will test it on the spot.
You will walk out with a printed treatment plan that tells you exactly what your water needs, the specific products to use, the correct dosages and when to come back for a retest. It is quick, it is free, and it gives you confidence that you are treating your pool correctly rather than guessing or over-dosing on chemicals you may not need.
We recommend testing your pool water at least once a fortnight during the swimming season and once a month during the cooler months. If you have just filled or topped up your pool, had heavy rain, noticed a change in water colour or clarity, or had a large number of swimmers, it is worth bringing in a sample as soon as possible to catch any imbalances early.
Pool Water Testing and Chemicals in Byron Bay and the Northern Rivers
Keeping your pool water balanced starts with knowing exactly what it needs. At Mullumbimby Hire and Sales, we offer free coin-disc water testing at our Station Street pool shop in Mullumbimby. Bring in a 500 ml water sample and we will test it on the spot and hand you a printed treatment plan with clear guidance on what to add, how much to use and when to retest. No guesswork, no confusing jargon, just practical advice from a local team that understands pool conditions in Byron Shire and the Northern Rivers.
We stock a comprehensive range of pool chemicals to cover every situation your pool might throw at you. Our shelves carry sanitisers to keep your water clean and safe, balancing chemicals to maintain the right pH and alkalinity levels, oxidisers to break down organic contaminants, algaecides to prevent and treat algae growth, clarifiers to keep your water crystal clear, and salts and minerals for saltwater pool systems.
We also carry spa chemicals for heated spas and swim spas, sunscreen products to protect against chlorine and UV degradation, and troubleshooters for those times when your water just is not behaving and you need a targeted fix. Whether you are maintaining a backyard pool, managing a rental property, or keeping an Airbnb pool guest-ready between bookings, we can match you with the right chemicals for your pool type and your local water conditions.
Our team does not believe in pushing products you do not need. We will look at your test results, explain what is going on with your water in plain English, and recommend the simplest, most cost-effective solution to get your pool back on track. Pop into our Mullumbimby pool shop during business hours, give us a call on
(02) 6684 3003, or send an
enquiry through the website anytime.
Pool Chemicals We Stock
We carry a comprehensive range of pool chemicals at our Mullumbimby pool shop, covering every category you need to keep your water clean, balanced and healthy all year round.
Sanitisers
Sanitisers are the foundation of clean, safe pool water. They work by killing bacteria, viruses and other harmful microorganisms that can thrive in warm, untreated water. Whether you run a chlorine pool or a saltwater system, maintaining the right sanitiser level is the single most important thing you can do for the health and safety of your pool. We stock a range of sanitiser products to suit different pool types and different preferences, and our team can help you choose the right one based on your water test results.
Balancing Chemicals
Balanced water protects your pool surfaces, extends the life of your equipment, and makes swimming more comfortable. The key levels to maintain are pH, total alkalinity and calcium hardness. When these levels drift out of range, your water can become corrosive, scale-forming or irritating to skin and eyes. Our balancing chemicals help you keep every reading in the ideal range, and our free water testing service shows you exactly which adjustments are needed and by how much.
Oxidisers
Over time, organic contaminants build up in your pool water — things like sweat, sunscreen, body oils, leaves and other debris that your sanitiser alone cannot fully break down. Oxidisers provide a powerful boost that destroys these contaminants, clears combined chlorine (chloramines) and restores water clarity. Regular oxidising, sometimes called shocking or super-chlorinating, keeps your water sparkling and reduces the workload on your everyday sanitiser, which means your chemicals last longer and work more efficiently.
Algaecides
Algae growth is one of the most common pool problems in the Northern Rivers, particularly during the warmer and wetter months when conditions are ideal for algae to take hold. Green, black and mustard algae can turn a clean pool into a murky mess in a matter of days if left unchecked. Our algaecides work as both a preventative measure and a treatment for existing outbreaks. Using an algaecide as part of your regular maintenance routine is one of the easiest ways to avoid the time, cost and frustration of a full algae recovery treatment.
Clarifiers
If your pool water looks cloudy, hazy or dull even though the chemical levels test correctly, the issue is usually fine particles that are too small for your filter to catch. Clarifiers work by binding these tiny particles together into larger clumps that your filter can then remove, leaving your water crystal clear. We carry a range of clarifier products that work with different filter types — sand, cartridge and D.E. — so we can match you with the right product for your system.
Salts and Minerals
Saltwater pool systems rely on the right salt and mineral concentration for the chlorinator to generate chlorine effectively. If your salt level drops too low, your chlorinator works harder and produces less chlorine, which can lead to water quality problems. We stock quality pool salt and mineral products that are compatible with all major saltwater chlorinator brands, and our water testing service includes a salt level check so you always know where you stand.
Spa Chemicals
Heated spas and swim spas have different chemical requirements from standard pools. Higher water temperatures, smaller water volumes and more concentrated body load mean that chemical levels can shift quickly and need more frequent attention. We carry a dedicated range of spa chemicals that are formulated specifically for spa conditions, including spa sanitisers, pH balancers, spa shock treatments and water clarifiers. If you own a spa, talk to our team about the right maintenance routine to keep your water clean and safe.
Sunscreen
Pool sunscreen products — sometimes called liquid pool blankets — sit on the surface of your water and reduce evaporation, heat loss and UV degradation of your chlorine. They are a simple, cost-effective addition to your regular pool care routine that can help you save on water, heating and chemical costs over time. We stock sunscreen products that are compatible with all pool types and safe for swimmers.
Troubleshooters
Sometimes your pool water develops a problem that standard treatments do not fix. Persistent cloudiness, metal staining, calcium scale, foaming, strong chlorine smell without adequate free chlorine, or water that simply will not balance — these are the situations where a troubleshooter product can make all the difference. Our troubleshooter range provides targeted solutions for specific water problems, and our team can help you diagnose the issue and choose the right fix based on your water test results and the symptoms you are seeing.
Pool Care Tips for Byron Bay and the Northern Rivers
Pool conditions in Byron Shire and the Northern Rivers are shaped by the local climate — warm temperatures, high humidity, heavy rainfall and strong UV exposure all affect your water chemistry and the demands on your pool system. Here are some practical tips from our team to help you stay on top of pool care in this region.
Test Your Water Regularly
We recommend testing your pool water at least once a fortnight during the swimming season and monthly during winter. After heavy rain, high bather loads or any noticeable change in water colour or clarity, test as soon as possible. Our free water testing service is the easiest way to stay on top of your levels.
Stay on Top of Algae Prevention
The warm, humid conditions in the Northern Rivers are ideal for algae growth. Using an algaecide as part of your regular routine and maintaining adequate sanitiser levels are the best defences. If you notice any green tinge, cloudiness or slippery surfaces, bring in a water sample and we will help you catch it early.
Keep Your Filter Clean
Your filter is the workhorse of your pool system. Backwash your sand filter regularly, clean cartridge filters according to the manufacturer's schedule, and replace filter media when it reaches the end of its lifespan. A clean filter means clearer water and less strain on your chemicals.
Watch Your Salt Levels
If you run a saltwater pool, check your salt levels regularly — especially after heavy rain, which can dilute your pool water significantly. Low salt means your chlorinator cannot produce enough chlorine to keep your water safe. Our water testing service includes a salt level check every time you visit.
Do Not Over-Dose
More chemicals do not always mean better water. Over-dosing can cause its own set of problems, including skin and eye irritation, damage to pool surfaces and equipment, and wasted money. Follow the treatment plan from your water test and add chemicals in the recommended amounts. If you are unsure, ask our team before you add anything.
Visit Our Pool Shop or Get in Touch
Our pool shop is at 73 Station Street, Mullumbimby NSW 2482. Whether you need a water test, a bag of chemicals, advice on a stubborn water problem or a full rundown of what your pool needs for the season ahead, we are always happy to help. Give us a call on (02) 6684 3003, send an enquiry through the website, or just walk in with your water sample. We will have you sorted in minutes.
FAQs about Pool Water Testing and Chemicals
Is your water testing really free?
Yes, our coin-disc water testing is completely free. There is no obligation to purchase anything. We believe that accurate water testing is the foundation of good pool care and we are happy to provide it as a service to our local community.
How often should I get my pool water tested?
We recommend at least once a fortnight during the swimming season and once a month during cooler months. After heavy rain, high swimmer numbers, filling or topping up your pool, or any visible change in water quality, it is worth testing as soon as possible.
What does the printed treatment plan include?
Your treatment plan shows the results of each test — pH, total alkalinity, free chlorine, combined chlorine, calcium hardness, stabiliser and salt levels — along with specific product recommendations, exact dosages and a suggested retest date. It takes the guesswork out of pool care completely.
Do you stock chemicals for saltwater pools?
Yes, we stock a full range of chemicals, salts and minerals for saltwater pool systems, as well as the chlorinator units and replacement cells to keep your system running. Our water testing includes a salt level check.
Do you stock spa chemicals?
Yes, we carry a dedicated range of spa chemicals formulated for the specific requirements of heated spas and swim spas, including sanitisers, pH balancers, shock treatments and clarifiers.
What if my pool water has a problem that standard chemicals are not fixing?
Bring in a water sample and talk to our team. We stock a range of troubleshooter products designed for specific water problems — staining, cloudiness, foaming, scale and more. We can help you diagnose the issue and recommend the right targeted solution.
Do I need to buy chemicals from you after getting a water test?
No, there is no obligation. We are happy to test your water and provide a treatment plan regardless of where you purchase your chemicals. That said, we stock everything you are likely to need and our prices are competitive, so most customers find it easiest to grab what they need while they are here.
What areas do you serve?
We serve pool owners across Byron Bay, Mullumbimby, Bangalow, Brunswick Heads, Ballina, Lismore and the wider Northern Rivers. Our pool shop is located at 73 Station Street, Mullumbimby NSW 2482.
Real Reviews from Local Customers
We hired a cool room, dance floor, outdoor furniture, umbrellas, lawn games, tables etc for our wedding in Nov 2025. The team at Mullum hire are amazing. I can’t thank them enough. The entire process from booking through to pack down and collection was seamless. The hire equipment is great quality and well priced, especially when compared with other vendors I contacted. The team are professional, helpful and easy to deal with, nothing was a drama for them. I couldn’t be happier with how everything went. It was fantastic to be able to get all our hire from the one place. It made the day so seamless. Thank you all so much! I would highly recommend!
We used the Mullum Hire team for our at-home wedding earlier this month. Everything from the marquee and lighting to the knives and forks was sourced from the Mullum Hire team, and they were absolutely incredible to deal with. They consulted and advised me on the best options for our wedding venue, as well as looked over things like our seating chart to ensure that everything would fit perfectly. On bump-in day, the team were super friendly and helpful, and willing to assist in any way they could. I wouldn't hesitate to recommend the Mullum Hire team! Thank you again! 🥰
Wow just blown away by the experience with the Mullum Hire crew. Our marquee looked amazing and really gave our customers an exceptional experience at our recent event. The crew were lovely and went out of their way to do extra with helping us install our shop banner. Highly recommend!!
We used Mullum Hire as our one-stop-shop hire company for our wedding in Bangalow, and they were fantastic. Terry and the team were incredibly helpful, flexible and capable, resulting in a hassle free and really calming experience in the lead up to the event. They communicated very well throughout, and the set up and bump out were smooth and uncomplicated. Highly recommend their services to anyone doing an event of any scale, as they will do whatever they can to get it just right.