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White deposits form on fixtures, dishes and pots.

Date : 3/11/2014
From : linda

Question

What is the white crusty deposit that sometimes forms in tea kettles after lots of use? How did it get there?

Answer

The crusty deposits you are seeing are most likely caused be the formation of calcium carbonate scale. This is also know as hard water deposits.

The calcium is normally dissolved in the water but as the water evaporates it starts to concentrate the calcium which starts formation of crystals on surfaces. This roughly the same thing as concrete.

To reverse the formations, you can try to clean it with a weak acid like vinegar, citric acid or some other weak acid.

Acid (low pH) causes scale to dissolve while base (high pH) causes scales to form.

You can eliminate the scale several different ways.

  • Reverse Osmosis
  • Water Softener
  • Distillation

    We use distillation for all of our needs and it works well for us.

    You can find those here:

    https://www.apswater.com/shopdisplayproducts.asp?id=1028&cat=Combo+Units+-+Commercial+%2F+Laboratory+Distilled+Water+System

    Reverse Osmosis is 2nd best but requires more to maintain it.

    You can find those here :

    https://www.apswater.com/shopdisplaycategories.asp?id=47&cat=Residential+Reverse+Osmosis+Systems+Parts+Membranes+Faucets

    A water softener works well on scale but can still leave deposits that are much easier to clean.

    You can find those here :

    https://www.apswater.com/shopdisplaycategories.asp?id=11&cat=Commercial+Water+Softeners


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