Fresh water rinsing of a boat hull of a boat occurs to remove contamination from the boat hull during each raising operation of the boat utilizing a boat lift. The contamination coming primarily from a body of water in which the boat operate. The contamination, if left on the boat hull while positioned on the boat lift and out of the body of water, will have an adverse effect upon the condition of the boat hull. A series of intermittent burst of fresh water from each fresh water discharge occur through a respective angle of discharge in a respective repetitive cycle of passes during the raising operation of the boat lift. Each fresh water discharge is generally fixedly positioned relative to a fixed portion of the boat lift. Rinsing of the boat cradle of the boat lift also occurs to remove contamination therefrom to reduce adverse effects to the cradle.