I always have a little water in the bilge but it is never from the ice box. That stuff can get nasty.
I made some plugs by cutting some closed cell foam with a hole saw. I stuff one in the ice box drain to plug the hole. This helps to keep the cold air draining out of the box. I always bring frozen jugs from home at the beginning of a trip. These will last for up to five days. I can drink the water as they start to thaw. If I do need to buy more ice, it goes straight into a dry bag at the point of purchase. The ice water never gets away. I I never have anything but a bit of condensation to wipe out and the box and bilge both stay fresh, Steve.
I made some plugs by cutting some closed cell foam with a hole saw. I stuff one in the ice box drain to plug the hole. This helps to keep the cold air draining out of the box. I always bring frozen jugs from home at the beginning of a trip. These will last for up to five days. I can drink the water as they start to thaw. If I do need to buy more ice, it goes straight into a dry bag at the point of purchase. The ice water never gets away. I I never have anything but a bit of condensation to wipe out and the box and bilge both stay fresh, Steve.