There are three openings to the hot water tank: a cold water inlet, a hot water outlet, and a pressure relief valve.
This is all well and good for a hot water heater that is used every day in a home bathroom or kitchen. But, what about periodic use in an RV?
I don't welcome the thought of water sitting stagnant in the tank for days, weeks, or even months between camping trips. So, what to do. Surely there must be some way to drain the tank by adding another opening to the tank itself, rigging some siphon or pump, or repurposing the pressure relief valve to a tube for either siphoning or pumping.
Does anyone have experience with this contraption and the problem of draining the tank? Any and all suggestions would be most welcome.
Thanks in advance.