[fraurauch]

We had the same problem. I finally determined that it happened every time my husband added water to our electric golf cart. Now exactly sure what he was doing that was causing this, but every since we purchased a gasoline cart, the problem has stopped. I am absolutely sure that was what was causing it. I even noticed it on the back of one of my tops once, and I figured he must have somehow splashed it on the back of my seat.