RV Antifreeze will not Flow on Hot side of Taps! - Escape Trailer Owners Community

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Old 09-29-2018, 09:19 PM   #1
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RV Antifreeze will not Flow on Hot side of Taps!

Trying to winterize my trailer and can get RV Antifreeze to flow through cold side of all taps, but not Hot side. Water heater is by passed, when using trailer normally not by passed I had Hot water all day.

Seems like something is preventing fluid to flow on the hot side when water heater is by passed

I'm stumped!
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Old 09-29-2018, 09:57 PM   #2
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Trying to winterize my trailer and can get RV Antifreeze to flow through cold side of all taps, but not Hot side. Water heater is by passed, when using trailer normally not by passed I had Hot water all day. Seems like something is preventing fluid to flow on the hot side when water heater is by passed I'm stumped!
You're sure you turned BOTH valves to bypass position?
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Old 09-29-2018, 10:01 PM   #3
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You're sure you turned BOTH valves to bypass position?



Yes, both valve handles are facing each other.
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Old 09-30-2018, 05:39 AM   #4
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Do you have a winterizing "T"? if so, you've done all that there is to do. Is it sucking antifreeze at all when attempting the hot? Start with the bathroom sink, I believe it's the first in line.
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Old 09-30-2018, 06:57 AM   #5
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Do you have an external shower, and are both knobs fully off?
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Old 09-30-2018, 07:55 AM   #6
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Do you have a winterizing "T"? if so, you've done all that there is to do. Is it sucking antifreeze at all when attempting the hot? Start with the bathroom sink, I believe it's the first in line.

It is pulling fluid when I open cold and pressurizes the line, but when I turn to Hot with antifreeze in the line and bottle nothing moves.


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Do you have an external shower, and are both knobs fully off?
Yes both knobs are off and same issue there. Fluid flows on cold, but not hot.


Seems to me the issue is after the water pump given the water pump will pick up fluid from the bottle.


I've ordered an RV Antifreeze pump to see if I can get the fluid to flow through city water connection.


Any check valves after the water pump?
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Old 09-30-2018, 08:00 AM   #7
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Was your hot water delivery working properly prior to this, and the only thing you really changed was use of the water heater bypass?
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Old 09-30-2018, 09:51 AM   #8
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It sounds to me like one of the bypass valves is not working properly and you are blocking the flow.
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Old 09-30-2018, 10:35 AM   #9
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It sounds to me like one of the bypass valves is not working properly and you are blocking the flow.

That’s what I was thinking
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Old 09-30-2018, 03:57 PM   #10
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Regarding by pass valves I was thinking the same thing, but how can they go bad.

Early part of September I went on long road trip and everything worked fine, no issues.

Can it be I have some type of vacuum in the hot water lines.

For the time being I have the trailer in heated hangar, but cannot keep it there long term.

What I have tried today;

Added more antifreeze into lines and same problem exists. Comes out of cold side but when I turn to hot the water pump pressurizers the line and stops. Cannot get antifreeze out of hot taps.

Put anode in water heater and put by pass valves back to normal and was able to get antifreeze into the hot water tank. I did not fill it, when I went to remove the anode, there was a lot of pressure. More than what I thought should be with just the water pump and water heater not running.

Put valves back to bypass and still no go.

I put antifreeze into fresh water tank, water pump would pick up antifreeze, but again nothing will come out on hot side. I didn't think it would work, but at this point I will try almost anything.

Just seems I have a blockage. My trailer needs an enema.

I will send Reace an email tonight and call ETI tomorrow to see if they ran into this before!
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