How much water needs to be emptied from a water tank.
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Yes you need to turn off the gas, no a 5 gallon bucket isn't enough (most tanks are 50 gal), you can use a long garden hose to the outside.... https://www.youtube.com/watch?v=K6-SquuvHFE
Thank you Sharon. I was always under the impression that you only needed to drain enough water until the flow was clear and not the entire tank. Have I been misled?
Being in HVAC for well over 10+ years the rule of thumb is to drain ONE gallon of water ONCE a month. Don't need to turn anything off. The sediment settles on the bottom and that is all that needs to be flushed. Anytime fresh water is introduced into the tank impurities are also introduced. Any one who is draining the whole tank is wasting water, introducing impurities with the fresh water ,and reducing the life of the tank.