Water in Water Heater

a lot of people empty their water tank some leave it until getting ready to winterize. my thoughts are it depends on two things, how long it going to be before you go camping again or more important what water you are using in your tank. the later depends on the camp ground. a lot of the underground water here in the states have sulfur in it. cities that are aware of the sulfur have a method to rid the sulfur from their water. many camp ground with their own water systems do not rid the sulfur. the sulfur is the main reason for your water heater emits a strong sulfur stink when used. so if you want to play it by ear, use your nose to determine what you want to do.