I have a Thetford 135 Porta Potti. It came with the camper we brought and the previous owners said that they never used it so to my knowledge, it is brand new still in the box. It has a 2.6 gallon fresh water tank and a 2.6 gallon holding tank. I would like to trade this for either a GPS or a portable hot water heater. If your interested let me know.
Thank you
Sandra