I have used distilled water exclusively for the past several years and have had no battery problems. In the past I have used tap water and also had no problems. On one of my prior boats I had two six volt battery's wired as one twelve. I kept them charged, cleaned the tops occasionally, and refilled them with tap water as required. When I sold the boat twelve years later they were still starting the 318 Chrysler the same as when they were new. Tom Egan 37 President DCMY Lynn, MA __________________________________________________ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com

mvserenity@yahoo.com writes: >I kept them charged, cleaned the >tops occasionally, and refilled them with tap water as >required. There is of course tap water and there is tap water. A few years ago I lived in British Columbia. Our tap water came straight from a glacier and was so pure that you couldn't use it in those small home vaporizers. We had to add salt or soda to get the electrolytic process going. Water kettles etc had no mineral scale, even after years of use. No-one ever used bottled or distilled water for their batteries. Now that was tap water! George of Scaramouche1, Lake Ontario, Canada