Ok folks, here's my first question to this seemingly very knowledgeable group. My wife and I (50 and 49 years old respectively) purchased our first NEW boat in July of 2013. We have the NauticStar 223DC sport deck boat, that includes a fair sized HEAD under the windshield. This boat has an option of a pump out toilet, or a porta potti, or neither. The Head is a fair sized compartment, equipped with a light, mirror, toilet paper holder and carpeting around the perimeter. The lake I'm on, Lake Martin in East Central Alabama, has a shoreline of well over 700 miles. There are numerous marinas, but, as most of you know, when you gotta go, you gotta go! I'm considering installing a porta potti in the head, but have no clue what-so-ever what to really look for or where to begin. We do actually live directly on the lake, so emptying waste is not a problem. I'm mainly wanting to know how porta potties are installed, if they need to be dead level, and some of your experiences with them.