Couple of questions: 1. How much water do you need to drain (and how often)? Is it enough just to drain out a couple of gallons or is it better to drain the whole thing?
2. I tried checking the sacrificial anode but the hex bolt is stuck in there real tight. I don't want to break the water or gas fittings by putting too much force on it and potentially losing my grip on the water heater body itself. Any suggestions how to loosen up the hex nut?