So our camper is a month old, we tried to use the water heater and it didnít work, we brought it back and was told it was a valve issue, got it fixed and brought it back home. Now that we go to use the water heater we are not sure if we are doing it right. I donít know which direction the valves go as there is no bypass valve just cold and hot, how do I know if there is water in the water tank? How long do I keep the water heater switch on the panel on for? Unfortunately these seem like simple questions to someone who is familiar with the system but for us it came with no direction, no instructions, no how to, no help whatsoever on any paperwork and we are newbies.