[Charli]

While our black tank indicator works pretty well both grey tank indicators almost always show full so occasionally I don't drain often enough and get the grey tanks backing up into the shower and kitchen sink. Despite my best efforts to keep the tanks clean the grey tank indicators must be covered in soap scum. So far no problems but After reading this post I think I will start dumping more frequently to reduce weight in the tanks. Don't travel with tanks full but I'm sure boondockers do frequently so you would think they would experience these problems more frequently.