We have chosen to get rid of our exiting system for 3 reasons. First, the smell. No matter what chemicals we used, the boat smells like a porta potty. Second, we have an issue of getting water pumped into the existing toilet. Third, when we arrive at a location, we are planning on spending most of our time at anchor. If we keep our existing system with a holding tank, we will have to always be looking for a marina in order to pump-out our tank or we will have to travel 3 miles offshore to dump it.
So why a composting toilet? Stay tune!