I better make the call on whether the Deminned water or distilled water should be used. My mate did say the Deminned water is the preferred and don't put any distilled water in.
Hmmmm . . . I don't think I've ever seen anything around here called Demineralized Water, my spell checker doesn't even recognize the word. Could it have another name? I've always understood that Distilled water should be used in a flooded battery, and recently purchased some for that reason.
When I was a teenager my dad was teaching me how to take care of the car. I remember him pouring Tap Water into the battery and telling me that "you're supposed to use Distilled Water in a battery but everybody he knew used tap water without having any problems".
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I did some searching and found that Demineralized water is also Deionized water.
From WikiPedia- Distilled Water
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In chemical and biological laboratories, as well as industry, cheaper alternatives such as deionized water are preferred over distilled water. However, if these alternatives are not sufficiently pure, distilled water is used. Where exceptionally high purity water is required, double distilled water is used.
Distilled water is also commonly used to top off lead acid batteries used in cars and trucks. The presence of other ions commonly found in tap water will cause a drastic reduction in an automobile's battery lifespan.
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