If it will be a month or more, I drain the water heater by removing the anode rod. The low point drains will not drain it. I find that after a month, the water left in the tank will start to smell a little. No real harm, I don't drink hot water, and try to flush the tank well before my first shower.
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LadyWindrider
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic
2008 Work and Play 18LT
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