A comprehensive checklist for de-winterizing your boat in the spring before launching for the season 

An ingress protection (IP) rating indicates how well a device is protected against water and dust. Defined by the International Electrotechnical Commission (IEC), IP ratings provide a guideline to the degree of protection provided by mechanical casings and electrical enclosures against the intrusion of solids and liquids.  

Both Zipwake and Seakeeper Ride are automated trim systems for powerboats that offer underway roll and pitch control with devices mounted on the transom in place of traditional trim tabs. While both systems aim to accomplish the same goal of helping the boat ride steadily in its most comfortable and efficient state by automatically reacting to changing conditions and generating lift on the transom, there are some significant differences between the two products.