From MSpa Oslo/Tribeca to a saltwater spa: here's how to do it
, by Rijo Veldhuis, 6 min reading time
A garden spa is pure relaxation. But did you know that you can easily convert your MSpa Oslo or Tribeca frame spa into a saltwater spa? This means: softer water, fewer chemicals, and much less maintenance. In this blog, we explain what you need and how to get this done in just a few steps.
🌊 Why a saltwater spa?
A saltwater system converts regular table salt (NaCl) into active chlorine via electrolysis. This provides:
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Softer water: gentler on skin, eyes, and airways.
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Constant disinfection: no hassle with chlorine tablets.
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Less odor: no typical ‘chlorine smell’.
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Lower maintenance: you need to add chemicals less frequently.
🛠️ What do you need?
1. Saltwater system (salt chlorinator)
A compact system specifically suitable for spas or small pools. Suitable models:
Ensure the device is resistant to the higher temperatures of a spa (up to 40°C) and does not require too high a flow rate.
2. Pool salt
Use pure sodium chloride (99% NaCl) without iodine or anti-caking agents. This is available at pool stores or online.
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How much? For a spa of ± 930 liters (such as the Oslo), you need approx. 2.5–3 kg of salt.
3. Test strips or digital tester
To regularly test the water for:
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Free chlorine (1–3 ppm)
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pH (between 7.2–7.6)
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Salt content (approx. 3,000 ppm)
4. Waterproof power supply
For connecting the salt chlorinator, preferably with a residual-current device (RCD).
5. (Optional) Zinc anode
Prevents corrosion on metal parts, certainly useful if you have metal fittings or heating elements.
6. (Optional) pH-minus or pH-plus
To regulate the pH value of the water.
🧰 Step-by-step plan: converting to a saltwater spa yourself
✅ Step 1: Clean and fill the spa
Clean the spa and fill it with fresh water. Ensure that all old chemicals (such as chlorine tablets) have been flushed out.
✅ Step 2: Add pool salt
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Add the salt evenly to the water.
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Turn on the circulation system to let it dissolve properly (approx. 24 hours).
✅ Step 3: Install the saltwater system
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Connect the chlorinator to the spa (stand-alone or via bypass depending on the type).
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Ensure a safe outdoor power supply (grounded + splash-proof).
✅ Step 4: Configure the chlorinator
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Program the runtime (e.g., 2–4 hours per day, depending on usage).
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Check the chlorine level after a few days and adjust the settings if necessary.
✅ Step 5: Test regularly
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Measure the salt content, chlorine level, and pH weekly.
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Add salt if you refill or refresh your water.
📌 Important to know
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Not all manufacturers (such as MSpa) provide warranty when using salt systems – please check this beforehand.
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Do not add flocculants or chlorine granules alongside the saltwater system.
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Do not use aromatherapy products containing oil, as these can foul the electrodes.
🧘♀️ Result: carefree relaxation
With a saltwater system for your MSpa Oslo or Tribeca, you enjoy softer, cleaner water without dealing with chemicals daily. It requires a small investment, but yields comfort and cost savings in the long run.
Would you like to know which saltwater system best suits your spa and budget? Leave a comment below or contact us for tailored advice!
Comments
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Beste, We hebben een Mspa Oslo (1150 liter) Graag willen we overgaan naar zout. Kan de chlorinator aangesloten worden op de spa en is dit dan nodig via een bypass? Zijn hier dan nog extra materialen voor nodig of kan dit gerealiseerd worden met de materialen die bij de chlorinator worden geleverd? Kan de Mspa Oslo ook overweg met het zout ivm bijvoorbeeld het verwarmingselement? Alvast bedankt voor uw reactie. Met vriendelijke groet, Remco van der Heijden
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Beste, We hebben een Mspa Oslo (1150 liter) Graag willen we overgaan naar zout. Kan de chlorinator aangesloten worden op de spa en is dit dan nodig via een bypass? Zijn hier dan nog extra materialen voor nodig of kan dit gerealiseerd worden met de materialen die bij de chlorinator worden geleverd? Kan de Mspa Oslo ook overweg met het zout ivm bijvoorbeeld het verwarmingselement? Alvast bedankt voor uw reactie. Met vriendelijke groet, Remco van der Heijden