Remembered another oversight with regard to the fresh water tanks. With my camper with its hot water tank I drained and flushed the fresh water tank and shocked it and refilled it but expected this to take care of the hot water tank as well. It did not. The result was the sulpher smell with the hot water coming out of the taps.
Not living where I need to winterize the water system the tanks were not getting an annual drain and shock treatment. Now I drain the hot water tank completely after every trip and add 1/2 ounce of bleach (5% solution) to the fresh water tank.
