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Old 06-30-2019, 07:04 AM   #1
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How Often Do You Drain Your Hot Water Heater?

Going on quite a few trips during the summer with a few weeks of idle time between. Should I be draining my hot water heater after every trip?
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Old 06-30-2019, 07:23 AM   #2
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Going on quite a few trips during the summer with a few weeks of idle time between. Should I be draining my hot water heater after every trip?
Not sure if it's right or not but in the 27 years we've been rving ( started 1992 ) we drain ours once a year when I winterize the rv. Flush it then also.

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Old 06-30-2019, 07:24 AM   #3
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I don't just for a few weeks.
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Old 06-30-2019, 07:29 AM   #4
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Originally Posted by Greg in michigan View Post
Not sure if it's right or not but in the 27 years we've been rving ( started 1992 ) we drain ours once a year when I winterize the rv. Flush it then also.

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Same here - we stayed in our trailer 111 nights last year so ours gets a good bit of use.
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Old 06-30-2019, 07:31 AM   #5
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Originally Posted by Greg in michigan View Post
Not sure if it's right or not but in the 27 years we've been rving ( started 1992 ) we drain ours once a year when I winterize the rv. Flush it then also.

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Old 06-30-2019, 07:33 AM   #6
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Originally Posted by Greg in michigan View Post
Not sure if it's right or not but in the 27 years we've been rving ( started 1992 ) we drain ours once a year when I winterize the rv. Flush it then also.

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Old 06-30-2019, 07:33 AM   #7
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Once filled at the start of the season, ours doesn't get drained until we winterize. There are often a few weeks in between trips. Never an issue.
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Old 06-30-2019, 07:38 AM   #8
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Same here. I drain it when I winterize.

When idle for a few weeks I do drain the water filter and set it on the counter to let it dry. I also sterilize the water lines to be on the safe side. I bypass the hot water heater when I sterilize.

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Old 06-30-2019, 07:40 AM   #9
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You stand more of a chance of rust developing inside of the tank (if it is not an Atwood water heater) without water in it than you do when it is full of water with a good anode rod.

I can’t think of any good reasons to regularly drain a steel water heater tank and leave it empty more often than necessary — “necessary” being when putting your RV away for winter.

Bruce
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Old 06-30-2019, 07:53 AM   #10
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I drain ours if the trailer is going to be sitting for 3 weeks or more between uses. My concern is stagnant water in the tank. I drain the water system through the low point drains for the same reason. Make sure you put the WH in by-pass mode before draining the low point drains to avoid any loose stuff in the WH from getting sucked into the water lines.
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