[Boyd]

Depending on the quality of your tap water will determine if you hurt your batteries at all. I live near Memphis, TN and our tap water is great. Noone uses deionizers or deionized water in their batteries and they last a very long time. A good test is how your water tastes. If it tastes metallic or undrinkable, you may have hurt it a little. If your tap water is cloudy or has heavy lime, etc. you may be in trouble. Filtered tap water generally won't hurt your batteries. As for the Asprin thing, it won't save a dying battery, but it might give you a few extra cycles. Don't try it on a good battery though.