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Old 10-19-2015, 12:56 PM   #1
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Winterizing Hot Water

So, I am getting ready to winterize my water system, and was wondering...

If I start pumping the antifreeze through the lines, naturally it will get pumped through the water heater, right?

Well, then I got to thinking, since there is water in there already, when the antifreeze starts circulating through the water heater tank, won't it be diluted by the water already there and essentially becoming not that effective at preventing freezeups?

So, what do you all do? Do I drain the water heater? And if I do, then when I circulate antifreeze, it will be circulated through an empty tank, and then I would have to fill it with antifreeze anyway. I know of no way to prevent the water from pumping through the (now empty) tank, so I am left with the same problem as when it was full of water!
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Old 10-19-2015, 12:58 PM   #2
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Drain water heater and bypass it.
Bypass valves should be behind it.
It's a good idea to NOT put antifreeze in the wh.

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Old 10-19-2015, 01:27 PM   #3
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Bypass valves? Hmmm. I have to find them. Don't remember seeing any...
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Old 10-19-2015, 01:44 PM   #4
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Go to this post and look at the photo of the bypass valves.

Water heater bypass valve

Make sure you relieve the pressure in the hot water tank before opening.

Good luck,
Don
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Old 10-20-2015, 09:32 PM   #5
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Quote:
Originally Posted by dmdrj5 View Post
Go to this post and look at the photo of the bypass valves.

Water heater bypass valve

Make sure you relieve the pressure in the hot water tank before opening.

Good luck,
Don
I 2nd the part about releasing the pressure
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Old 10-21-2015, 05:54 AM   #6
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I successfully winterized...Yay!
Thanks to all for giving me great advice. In my case, the bypass valve was on the outside of the coach in plain sight. I just didn't know what to do with it..
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Old 10-21-2015, 08:42 AM   #7
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Moodman,

Are you certain you found the bypass valves on the outside of the coach?
I have never seen that. They are typically located on the back side of the tank where the inlet and outlet plumbing is connected.
The only valve I can think of on the outside (but inside the WH cover) is the pop-off valve and it doesn't serve as a bypass.

Hoping you were successful anyway!
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Old 10-21-2015, 08:43 AM   #8
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My columbus wh by pass "valve" is in the water convince center.

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Old 10-21-2015, 08:49 AM   #9
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Red handle.
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Old 10-21-2015, 08:53 AM   #10
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Well, OK that makes sense. INSIDE the storage area.
He mentioned the valve was on the OUTSIDE of the coach which I understood to be... well... on the outside!
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