How and When to Descale Your Water Distiller in Australia

Scale buildup is the most common maintenance issue with water distillers in Australia — particularly in hard water areas like Perth and Adelaide. Here’s how to descale correctly and how often to do it.

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Why Descaling Matters

Water distillers work by boiling water and condensing the steam. Dissolved minerals — primarily calcium and magnesium — are left behind in the boiling chamber as scale. Over time, scale buildup:

• Reduces heating efficiency (the element has to work harder through the scale layer)
• Increases energy consumption
• Shortens the life of the heating element if left unchecked
• Can affect the taste of distilled water if the chamber is heavily scaled

In hard water areas (Perth, Adelaide), scale builds up faster — descale more frequently.

How Often to Descale

A visible white or grey crust in the boiling chamber is the clearest sign it’s time to descale.

How to Descale: Step by Step

1. Turn off and unplug the distiller. Allow to cool completely.
2. Empty the boiling chamber of any remaining water.
3. Add descaling solution — white vinegar (undiluted) or a food-safe citric acid solution works well. Fill to cover the scale deposits.
4. Leave for 2–4 hours (or overnight for heavy scale).
5. Scrub gently with a soft brush or cloth. Do not use abrasive scourers on stainless steel surfaces.
6. Rinse thoroughly with clean water — multiple rinses to remove all descaling solution residue.
7. Run one full distillation cycle and discard the output before resuming normal use.

What Not to Use

Avoid harsh chemical descalers not rated for food contact. White vinegar and citric acid are safe, effective, and food-grade. Do not use bleach or abrasive cleaners on the boiling chamber.

Frequently Asked Questions