John Brennan Pools & Spa Services
Central Coast NSW 25+ Years Experience Licensed & Insured

Pool Inspection App

The Inspection App is part of our premium on-site inspection service. A full pool inspection is carried out in person by John and booked in advance — get in touch and we'll arrange a time that suits you.

Book an Inspection
Staff Access

Staff only — you'll be asked for the password on the next screen.

Continue to App
PublishedJun 2026·UpdatedJun 2026·Reading Time: 10 minutes
Magnesium Pools · Central Coast NSW

Swimming in a magnesium pool.

Soft, silky water that does more than refresh. Magnesium has been valued for centuries as a natural remedy — and when absorbed gently through the skin, a magnesium mineral pool offers a swim associated with easier muscles, calmer minds and a kinder feel on the skin. Here's what the wellness story is really about, and how to make the switch — guided by a practice with over 25 years of hands-on experience.

Calm, clear water of a backyard magnesium mineral pool
25+
Years Experience
300+
Bodily Reactions Use Magnesium
Skin
Mineral Absorption
The Mineral Itself

Why magnesium matters.

Magnesium is an essential mineral involved in over 300 biochemical reactions in the body — muscle and nerve function, energy production, and the synthesis of DNA and protein among them. It quietly underpins how the body works.

Yet many people run low on it, thanks to modern diet and lifestyle. A shortfall can show up as muscle cramps, fatigue, and in some cases contribute to cardiovascular issues.

A gentle top-up, straight through the skin.

Swimming in a magnesium pool lets the body absorb the mineral through the skin, bypassing the digestive system. For anyone running low, that's a direct, easy way to help replenish levels while you simply enjoy the water.

And the water itself is part of the appeal — magnesium pools feel notably softer and silkier than a traditional chlorine pool, with less of the sting and dryness many swimmers associate with heavy chlorination. See how a conversion works.

A swimmer relaxing in the soft water of a magnesium pool
The Wellness Case

Five ways a magnesium swim looks after you.

Swimming is already one of the best low-impact, full-body exercises there is. Magnesium-infused water layers a therapeutic dimension on top of it — touching body, mind and skin.

— I —

Heart & Circulation

Swimming lifts your heart rate and circulation, while the water's buoyancy spares your joints. Magnesium is associated with healthy blood pressure and heart function.

— II —

Stress & Calm

Warm water and magnesium together create a serene, weightless calm. Magnesium is linked to balanced stress hormones and the feel-good neurotransmitter serotonin.

— III —

Muscles & Recovery

Famous for its muscle-relaxing reputation, magnesium may help ease soreness and tension — a soothing choice after a hard workout or for ongoing aches.

— IV —

Skin & Hydration

Mineral-rich water can leave skin feeling soft, hydrated and rejuvenated, and many swimmers with sensitive skin find it gentler than heavy chlorine.

— V —

Replenishing Levels

For anyone running low on magnesium, absorbing it through the skin while you swim is a gentle, effortless way to help top the body's stores back up.

Mind & Mood

A sanctuary for mental well-being.

Few things compare to the experience of slipping into a magnesium pool at the end of a long day. The warm water envelops you, creating a weightlessness that lets the tensions and worries of the day fall away. As you float, the calming properties of magnesium go to work, helping body and mind unwind together.

Swimming itself has long been recognised as excellent for mental health — the rhythmic movement releases endorphins, the body's natural "feel-good" hormones, which can lift mood and ease symptoms of stress and low spirits. Paired with the soothing effect of magnesium, the swim becomes a genuine tool for calm.

A built-in mindfulness practice.

Focusing on your breath and the gentle movement of your body in the water quiets the mind and slows racing thoughts. It's a quiet time for introspection and self-care — a serene escape in your own backyard.

A peaceful magnesium pool at dusk in a private backyard
Gentle low-impact water exercise in a magnesium pool
Body & Skin

Easier muscles, softer skin.

For tired, achy muscles, a magnesium swim can be a real comfort. The mineral has anti-inflammatory properties that may help ease soreness and support recovery — welcome relief whether you're bouncing back from an intense workout or managing a chronic condition like arthritis.

The buoyancy of water creates a naturally low-impact environment, taking the load off your joints so you can move gently and improve flexibility. The water's resistance still gives a genuine full-body workout, so you build strength and tone without the strain.

The benefits reach the skin's surface too. Mineral-rich water can improve hydration and is associated with reduced irritation, leaving skin feeling soft, smooth and rejuvenated. For sensitive skin in particular, many swimmers find magnesium water far kinder than a heavily chlorinated pool. More on the magnesium lifestyle.

A Simple Ritual

Getting the most from your swim.

A magnesium pool rewards a little intention. Build a small routine around your swim and the wellness benefits deepen — body, mind and all.

01

Ease In

Step in slowly and let the warm, silky water settle around you. Give yourself a moment to feel the weightlessness before you start to move.

02

Move Gently

Begin with slow, rhythmic laps or gentle water movement. Let the buoyancy carry your joints while your muscles warm and loosen.

03

Breathe & Soften

Focus on your breath and the gentle motion of your body. This simple mindfulness quiets the mind and lets stress drain away.

04

Linger

Float for a few unhurried minutes at the end. This is where the calming effect of magnesium and warm water does its best work.

05

Rehydrate

Drink plenty of water before and after. Swimming is more demanding than it feels — staying hydrated keeps you feeling your best.

A magnesium pool turns an ordinary swim into something closer to a daily reset — your mind, body and soul will thank you. — John Brennan, Practice Lead

Swim Smart

A few sensible precautions.

A magnesium pool is wonderfully gentle, but it's still a pool. Keep these simple points in mind for a safe, enjoyable swim every time.

Check with your doctor first

Especially if you have any underlying health condition or are starting a new routine.

Follow basic pool safety

Supervise children, don't dive in shallow water, and use flotation aids if needed.

Keep the water balanced

Test regularly and keep pH, sanitiser and chemistry in range to stay clean and clear.

Hydrate before & after

Drink water around your swim — it's more physically demanding than it feels.

Mind allergies & sensitivities

Magnesium suits most people, but stop and seek advice if you notice any reaction.

Keep filtration running well

Good filtration and disinfection prevent bacteria and algae taking hold.

Want the chemistry handled for you? John Brennan Pools keeps your mineral pool clinically balanced with regular water testing & balancing.

Common Questions

Magnesium pools, answered.

How does the body absorb magnesium from a swimming pool?

The body absorbs magnesium from a magnesium pool transdermally — directly through the skin while you swim, bypassing the digestive system. For people running low on the mineral, a magnesium pool offers a direct, effortless way to help replenish levels during an ordinary swim, with no supplements required.

Does a magnesium pool feel different to swim in than a chlorine pool?

Yes — magnesium pool water feels noticeably softer and silkier on the skin than chlorine, with far less of the sting, dryness and strong odour associated with heavily chlorinated pools. Swimmers with sensitive skin often find the magnesium mineral water installed by John Brennan Pools considerably gentler.

Is a magnesium pool good for sore muscles and aching joints?

Yes — magnesium has muscle-relaxing and anti-inflammatory associations that may help ease soreness, while the buoyancy of the water removes load from the joints. This makes a magnesium pool a gentle, low-impact environment for movement and recovery, particularly valued for managing arthritis or recovering after a workout.

Does a magnesium pool still need regular maintenance?

Yes — like any pool, a magnesium pool needs regular testing and balancing of its water chemistry, plus good filtration and disinfection, to stay clean and prevent bacteria or algae. John Brennan Pools maintains mineral pools across the NSW Central Coast on a routine schedule, keeping the water clinically balanced for you.

Can I convert my existing chlorine pool to a magnesium mineral pool?

In most cases, yes — a mineral conversion upgrades an existing chlorine setup to a magnesium-based system. John Brennan Pools handles magnesium conversions across the NSW Central Coast; call Practice Lead John Brennan on 0491 180 575, or read more on the John Brennan Pools mineral pool conversion page.

John Brennan Pools Uncompromising Standards

Talk to us about going magnesium.

Speak directly with Practice Lead John Brennan about converting your pool to a magnesium mineral system — no call centres, no upselling, just considered advice on whether it suits your pool. Every conversion and every service visit is delivered to John's standard, with the Master-Level Care that defines the practice. Because your pool is an investment, not just a backyard feature.

Written by John Brennan

John Brennan is the Practice Lead and Principal Technician of John Brennan Pools, a specialist pool and spa practice serving the NSW Central Coast since 2019. As Principal Technician, John brings over 25 years of hands-on technical experience — across QLD, the NT, and NSW — in diagnostics, clinical water chemistry, and mineral pool conversions. As Practice Lead, he sets the clinical standards every technician on the team is trained to meet, so every engagement is delivered with the same Master-Level Care.

John has overseen and performed magnesium conversions on pools right across the Coast, and this guide reflects the practical experience and considered advice the practice gives clients weighing the switch to a mineral system. Uncompromising standards — because your pool is an investment, not just a backyard feature.

Fully Licensed & Insured · ABN 11 202 829 652 · Contact John

Health Note & References

Health note: This article is general wellness information only and is not medical advice. Individual results vary, and the wellness benefits described reflect commonly reported experiences and the broader properties attributed to magnesium — not guaranteed medical outcomes. Always consult a qualified healthcare professional before starting any new exercise or wellness routine, particularly if you have an existing health condition.

Background on magnesium and swimming is informed by general health sources including:

  • National Institutes of Health (NIH) — Office of Dietary Supplements, magnesium fact sheet.
  • Better Health Channel (VIC) — guidance on magnesium and the benefits of swimming.
  • Royal Life Saving Australia — general home pool safety guidance.

Pool water should always be tested and balanced to keep it safe and clean, regardless of the mineral system used.

Service Coverage

Across the Central Coast.

Mineral pool conversions and full pool servicing across 90+ suburbs — from Umina to Lake Munmorah and everywhere between.

UminaUmina BeachWoy WoyBerkeley ValeTumbi UmbiBateau BayWadalbaWyongTuggerahMorissetCooranbongBrisbane WaterWamberalKincumberAvocaThe EntranceBudgewoiGwandalanGosfordWyomingNararaPoint ClareTascottToukleyLake HavenGorokanHamlyn TerraceKillarney ValeWoongarrahWarner ValeJillibyWyeeBlue HavenBuff PointDoyalsonSan RemoKariongLake MunmorahSt Huberts IslandBensvilleNorah HeadMagenta ShoresNoravilleHardys BayKillcareCopacabanaMacMasters BeachCharmhavenDaleys PointOurimbahSaratogaDavistownEast GosfordSpringfieldKanwalLisarowMannering ParkNorth GosfordTuggerawongTacomaWatanobbiYatalungaErinaBlue BayToowoon BayMardiKangy AngyLong JettyWyongahChittaway BayYarramalongDooralongRocky PointBooker BayChain Valley BayEmpire BayEttalong BeachForresters BeachGreen PointKoolewongPalmdalePatongaSomersbyMangrove MountainMatchamHolgateShelly BeachSummerland PointWagstaffeWest GosfordAlisonTerrigal
Call John · 0491 180 575