Water level indicators work quite well. Waste tank indicators, those that are in the tank, need constant maintenance. They are always stuck and need to be removed for cleaning. In my opinion they are not worth the effort. There are some thru-the tank wall sensors available but I do not have any experience with them. I use a flashlight to see the tank level. It's quite obvious if you have a focused beam.
Check the RV sites for recommendations. Capt. George
Check the RV sites for recommendations. Capt. George
