before you invest in a portable waste tank, go to a few parks with full hookups. Most private parks in GA have sewer connections and some of the state parks do. with your little ones you are likely to fill your gray tanks very quickly unless you use park showers and teach the kids water conservation. all the GA state parks I have been to have acceptable showers.. and they generally have larger water heaters so I can take longer. I have used my tank once in several years of camping. that was in state park with no sewer connections. Using my shower instead of campground and a friend was staying with me who had never RV'ed before. Not sure where you are, but there are several GA Power parks around that are quite nice too. There are also a few local parks that are nice little known places to visit. As my profile says I am in SWGA, feel free to PM me for park suggestions or questions about places to go.