Quote:
Originally Posted by AL1
Some parts of the country have a lot of minerals in the water that may affect the porcelain. Distilled water solves that problem.
Here in the Seattle area it doesnt seem to matter. I have used tap water for years with no ill effects.
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Same reason to use distilled water with gypsums... mineral content can affect expansion ratios and crushing strength.
With ceramics, they can leave unwanted "characterization"= spots.