Hi there. We use ours in saltwater full time. It’s a nightmare but it’s the only option for us. One tip, when you’re loaded up for surfing and quite low to the water it’s easy to take a wave over the bow. When this happens all the water gets back to the stern bilge and if there’s enough of it or you’re at an inclined accelerating angle, it can hit the bottom pulleys and the belt splashes it everywhere. Be ready to replace alternators! We go through one about every 25 hours.