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Thread: Fresh water tank issue

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    Fresh water tank issue

    I de-winterized my elkridge E22 fifth wheel last week. I think I figured out all of the valves etc and got all of the lines flushed out. My issue is when I filled the fresh water tank, there are two waterlines (one coming out of each side of the frame with 90 degree fittings on the ends and the water just runs out of these lines. I assumed that they may be overflow lines and the water would just stop when it got back down to the right level but it never stopped. It drained the entire tank.

    Any ideas what these are for and how to make the water not drain? (the red plug was not there. I put that I so I didn't lose all water as I was camping with no hook ups.) Once I plugged this one it just started coming out the other side.


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    Senior Member Oregon_Camper's Avatar
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    Re: Fresh water tank issue

    Are you saying it drains 100% of the tank, while RV is standing still?

    I had issues with both of my overflow valves draining water during travel. (about 1/2 a tank...yikes!)

    I installed some hose and a valve to stop this issue during travel. You just need to remember to open the valves when filling the tank or pulling water from tank, to allow air to flow in/out. You don't want to create an air tight situation.

    I added a reminder message in my UDC area to ensure I remember the valves each time I fill up.


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    Senior Member Jesstruckn/Jesstalkn's Avatar
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    Re: Fresh water tank issue

    Quote Originally Posted by stuff View Post
    I de-winterized my elkridge E22 fifth wheel last week. I think I figured out all of the valves etc and got all of the lines flushed out. My issue is when I filled the fresh water tank, there are two waterlines (one coming out of each side of the frame with 90 degree fittings on the ends and the water just runs out of these lines. I assumed that they may be overflow lines and the water would just stop when it got back down to the right level but it never stopped. It drained the entire tank.

    Any ideas what these are for and how to make the water not drain? (the red plug was not there. I put that I so I didn't lose all water as I was camping with no hook ups.) Once I plugged this one it just started coming out the other side.

    Those are your fresh tank vents. They are mounted on the top of both sides of your fresh tank. There is no possible way that thy could be draining​ out your fresh tank.
    Mine did leak out a lot of water when traveling with tank full. I installed valves on mine also to keep water in there.
    If you have water running out of those vent's while hooked to city water then you have another problem, either your Anderson valve is leaking back to the tank or your check valve inside your water pump is bad and letting water go back to your tank.

    Hope this helps
    Jerrod

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    Re: Fresh water tank issue

    I figured that's what they were but I let the trailer sit for about 1.5 hours and the tank level gauge said full at the beginning and 1/3 after 1.5 hours. No outside water hooked up.

    installing a valve on each seems like a fix for now. Not sure how it can be air tight as there is a small screen next to the fill that I assume is a vent as well.

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    Senior Member Jesstruckn/Jesstalkn's Avatar
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    Re: Fresh water tank issue

    Well now if you have the gravity fill then most of what I said is wrong !!!!
    Do you gravity fill of have an Anderson valve ?


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    Re: Fresh water tank issue

    Sorry yes its a gravity fill.

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    Senior Member Jesstruckn/Jesstalkn's Avatar
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    Re: Fresh water tank issue

    Well now if you have the gravity fill then most of what I said is wrong !!!!
    Do you gravity fill of have an Anderson valve ?

    They seem to be to high to be low point drains though ..


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    Re: Fresh water tank issue

    There are two low point drains hanging straight down under the back with valves on them.

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    Senior Member Jesstruckn/Jesstalkn's Avatar
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    Re: Fresh water tank issue

    Red and blue lines ?
    Hopefully someone with the same unit will help us figure it out.
    Give us the year make and model number again please.
    I'm sure someone will have the answers


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  10. Print this Post   #10
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    Re: Fresh water tank issue

    Yes red and blue with valves near the back and another blue between the axles with a valve. (I assume fresh tank drain) Both of these lines that are leaking are red.

    The unit is an Elkridge Extreme Light Edition E22


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