Support Stable, Balanced Spa Water
AquaSpa Alkalinity Enhancer is the water-stability step in the AquaSpa chlorine-free and bromine-free spa system, used when total alkalinity and pH need to be lifted to support more balanced, better-managed spa water.
When total alkalinity is too low, spa water can become less stable and more prone to unwanted fluctuation, making the water harder to manage and less consistent to live with. AquaSpa Alkalinity Enhancer helps restore the buffering support needed for steadier water conditions and a more settled overall spa environment.
Why This Balance Step Matters
Supports proper buffering
Total alkalinity helps hold spa water in a more stable range and reduces sudden pH movement.
Helps reduce pH bounce
When alkalinity is too low, pH can fluctuate more easily and become harder to control.
Supports easier water management
Keeping alkalinity in range helps the wider AquaSpa system stay steadier and easier to manage.
Helps protect spa surfaces and equipment
Water with low alkalinity can contribute to corrosion and may affect some spa surfaces over time.
Supports a more comfortable spa environment
Balanced water helps create more pleasant conditions for regular spa use.
Works within the AquaSpa system
Supports the balance conditions needed for sanitising, shock treatment, and overall AquaSpa care.
How It Works
AquaSpa Alkalinity Enhancer increases total alkalinity and pH in spa and hot tub water using sodium bicarbonate. In the AquaSpa system, total alkalinity acts as a buffer, helping hold the water in a more stable range and reducing the sharp pH movement that can happen when alkalinity is too low.
When buffering is insufficient, pH can fluctuate more easily and the water may become harder to manage. Low alkalinity can also contribute to equipment corrosion, etching of some spa surfaces, and a less comfortable bathing environment. AquaSpa Alkalinity Enhancer is used to restore that buffering support so the water remains steadier and easier to balance as part of the wider AquaSpa system.
How to Use
- Test the spa water before dosing.
- Calculate the correct spa volume.
- Ensure the filtration pump is running.
- Add AquaSpa Alkalinity Enhancer to the spa water at the required dose.
- Leave the cover off for at least 30 minutes after dosing.
- Retest the water before making further adjustments.
Dosage & Coverage
- Dosage: To raise total alkalinity by 10ppm, add 18g per 1,000 litres
Important Usage Information
- Use AquaSpa Alkalinity Enhancer only when testing shows total alkalinity and/or pH need to be raised.
- Always adjust total alkalinity before adjusting pH.
- Do not add more than 40g per 1,000 litres at any one time.
- Add chemicals to water and never water to chemicals, and do not overdose.
- If adding other AquaSpa products, allow 30-minute intervals between each chemical addition.
For AquaSpa systems, pH is generally maintained at 7.2–7.6 and total alkalinity at 125–150ppm. AquaSpa Alkalinity Enhancer is part of overall water balance management and does not replace sanitising, shock treatment, filtration care, or other balancing steps where required.
The AquaSpa Chlorine-Free Spa Experience
AquaSpa by Lo-Chlor offers a different way to care for spas and hot tubs, built around a chlorine-free and bromine-free system that supports healthy, sparkling water with a gentler feel.
Proudly Australian and manufactured for local spa conditions, the AquaSpa range is created for spa owners who want comfort, freshness, and simpler weekly care. It works as a complete system to help maintain a more enjoyable soaking environment without the usual harshness associated with traditional sanitising methods.
From ongoing sanitising and oxidation to water clarity, balance, and system care, AquaSpa brings each part of spa maintenance together in a way that feels easier, more comfortable, and more rewarding to live with.
Frequently Asked Questions
When should I use AquaSpa Alkalinity Enhancer?
Use it when testing shows total alkalinity and/or pH in your spa or hot tub is too low and needs to be brought back into range.
Why does low alkalinity matter in a spa?
Low alkalinity reduces the water’s buffering capacity, which can cause pH to fluctuate more easily and make the spa water harder to manage.
Should I adjust alkalinity or pH first?
Adjust total alkalinity first, then retest before making further pH corrections.
How much AquaSpa Alkalinity Enhancer can I add at one time?
Do not add more than 40g per 1,000 litres of water at any one time. After dosing, allow the water to circulate and retest before making further adjustments.
Can low alkalinity affect spa surfaces or equipment?
Yes. Water with low alkalinity can contribute to equipment corrosion and may etch some spa surfaces if it is left uncorrected.
Can I add AquaSpa Alkalinity Enhancer with other AquaSpa products on the same day?
Yes. Keep the filtration pump running, leave the cover off, and allow 30-minute intervals between each chemical addition.
