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mcarter
podders Helping podders - pHp
Joined: 07 Apr 2016
Location: Greenbrier, TN
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Posts: 3419
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Topic: Winterizing using air compressor Posted: 10 Nov 2020 at 11:50am |
There can be water in FW line and pump, best to run it dry.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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vbdomenico
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Joined: 19 Apr 2020
Location: Kansas City, MO
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Posted: 10 Nov 2020 at 10:39am |
So here is what I did; I opened up both low point drains and the fresh water tank, depressurized the HW tank and removed the anode, after all of the water was drained I hooked up air compressor to blow out plug at 30psi, then opened each valve one at a time until only air came out.
I then did one thing that many of the directions I read online didn't mention - I turned on the water pump while the air was still hooked up. I was surprised to see how much additional water came out, it appeared to be at least a half gallon. Is this the water sitting in the pump and the line to the fresh water tank? I assumed most of this water drained out when the system was depressurized.
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john in idaho
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Joined: 04 Nov 2014
Location: Eagle Idaho
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Posted: 10 Nov 2020 at 10:29am |
Don't forget to open the "emergency" pressure relief valve to make sure the HWH tank is empty and not pressurized before taking the anode out. The anode plus socket wrench will travel about 20 ft very rapidly and necessitate a trip to the house to change into dry clothing.
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vbdomenico
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Location: Kansas City, MO
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Posted: 09 Nov 2020 at 4:56pm |
Thanks Mcarter
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vbdomenico
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Posted: 09 Nov 2020 at 4:56pm |
I have already drained everything, including pulling the anode and opening all low points drains and opening all faucets. I have read instructions advising of using the bypass valve when using air for winterization, but I could not figure out why. I would rather not.
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mcarter
podders Helping podders - pHp
Joined: 07 Apr 2016
Location: Greenbrier, TN
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Posts: 3419
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Posted: 09 Nov 2020 at 4:53pm |
I have used air for 5 years, I never bypass my water heater, I do however, drain and clean. The only reason to bypass water heater is if injecting anti freeze, you don't want to fill water heater with 6 gals of anti freeze. The lines will blow fine with air.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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offgrid
Senior Member
Joined: 23 Jul 2018
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Posts: 5290
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Posted: 09 Nov 2020 at 4:47pm |
My feeling would be that you could do it that way safely if you first drain all the lines by opening the faucets and the low point drains and the water heater by pulling the anode. Otherwise you are likely to just get air bubbling through the water in the water heater tank. As I haven't tried that myself I'm not sure and others might have a different opinion.
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold
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vbdomenico
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Joined: 19 Apr 2020
Location: Kansas City, MO
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Posted: 09 Nov 2020 at 4:34pm |
I bought a small air compressor for winterization as I plan on periodically using the water in my pod this winter when the weather permits. Is it necessary to bypass the hot water heater when blowing out the water lines? I have a 190 and the access to the pump and tank are not that easy. I assume I can just force air (at 30psi) through both the hot and cold lines without bypassing, but maybe I am missing something.
Thanks.
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