This might sound like a dumb question..........but.............we are going out on Lake Martin down here in Bama to sleep overnight on the boat. It is going to be around 27 degrees. What does one put in the fresh water porta-pottie tank to keep things flowing! Not a problem with our heat going, but in the interim.........might be a problem. Is there something you can buy........?
Rick and Donna
Rick and Donna