Our test group included five products from the marine industry and one home remedy of water and vinegar.

You wash, you wax, you buff—all in the name of keeping your boat looking perfect. But it’s not perfect (whimper). You’ve got water spots. Call 911!

Water spots can drive the nasty-neat (dare we say anal?) boat owner crazy. Sleepless nights, fingernail biting, endless pacing. But wait. There are several products formulated specifically to remove water spots from boats. We tested five of them, and we tried a home remedy that we’ve heard works just as well as the fancy stuff. …