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Can I use plain water in Spray Mop?Updated a day ago

TL;DR: Yes, plain water works in Spray Mop. Keep it room temperature and skip hot or boiling water. Don't add essential oils (especially citrus) as they degrade the plastic. Empty and rinse the bottle between uses to prevent odour or build-up. For a proper clean, fill with undiluted Universal Cleaner instead.


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Can I use plain water in Spray Mop?

Yes. Plain water works in Spray Mop for quick refreshes and light maintenance. Spray Mop is designed to be filled with either Universal Cleaner or water. Use room temperature water only. Hot or near-boiling water can damage the bottle and trigger mechanism over time. Don't add essential oils to the water, especially citrus, as they degrade the plastic.

✓ Use room temperature

Plain tap water at room temperature works fine for quick refreshes between proper cleans. If the water feels hot to the touch, let it cool before filling.

Room temperature Tap water is fine

⚠ Skip these

No hot or boiling water as it can damage the bottle and trigger mechanism. No essential oils, especially citrus, as they degrade the plastic over time.

No hot water No essential oils No citrus oils

How do I keep the bottle fresh between uses?

Empty the bottle if you're not mopping again soon. Plain water sitting in the bottle can develop odours faster than Universal Cleaner. Give the bottle a quick rinse with cool tap water and let it air-dry between uses. If the bottle starts to smell, wash it with warm (not hot) soapy water, rinse well, and dry fully before refilling.

✓ Empty after use

If you're not mopping again soon, empty the bottle to prevent stale water sitting in the mechanism.

✓ Rinse and dry

Give the bottle a quick rinse with cool tap water and let it air-dry between uses.

✓ Odour fix

Wash the bottle with warm (not hot) soapy water, rinse well, and dry fully before refilling.


When should I use Universal Cleaner instead of water?

Plain water works for quick daily refreshes, light dust pick-up, or cleaning between guests. For a proper clean that lifts grease, traffic dirt, soap residue, and ground-in grime, fill the bottle with undiluted Universal Cleaner. Universal Cleaner gives Spray Mop full cleaning power and a streak-free finish across sealed hard floors.

✓ For the best clean

Plain water works for a quick refresh or light dust pick-up. For lifting grease, traffic dirt, soap residue, and ground-in grime, fill Spray Mop with undiluted Universal Cleaner for full cleaning power and a streak-free finish.

Full cleaning power Undiluted Streak-free

Koh Universal Cleaner

Universal Cleaner

The recommended solution to fill the Spray Mop bottle with for a proper clean. Use undiluted for full cleaning power.

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Last reviewed: May 2026


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