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SkullAndSquirre's avatar
SkullAndSquirre
Explorer
Dec 18, 2018

Winnebago 27reok Fresh water drains out.

Howdy, I have a fresh water fill question 27reok 5th wheel. Here is what I did. I hooked up to city water, then turned the selector to (B. tank). Filled to 3/4 fresh water. Turned the selector to (A. Normal), tested the pump and got water. Drove to the campground, and most of the water had drained out (D.). I closed (E.) to the position it is now, took a second trip, and water still drained out (D.) on my way to the site. ..I am not sure what I am doing wrong, any help appreciated!


  • laknox's avatar
    laknox
    Nomad
    Dec 18, 2018
    What is E =supposed= to do? It may not be =you=, it may be that the overflow is siphoning if it got stuck too far into the tank at the factory.

    Lyle
  • SkullAndSquirre's avatar
    SkullAndSquirre
    Explorer
    Dec 18, 2018
    I am not quite sure what E is honestly. I think, it might be a low point water drain? It was open the first time we took it out, and I figured at that time it was what drained the water so I closed it. It did have residual water in it.
  • laknox's avatar
    laknox
    Nomad
    Dec 18, 2018
    D is likely the vent line, hence the screen, so it =could= extend too far into the tank and be siphoning. I'd put water in the tank, drive down the road and have someone follow you to see if that's where it's coming from. There's been a couple recent threads about this same issue and =I'm= wondering if I may have that issue, as I sure didn't seem to have my full 60 gallons available on our first boondocker with the KZ.

    Lyle
  • ItsyRV's avatar
    ItsyRV
    Explorer
    Dec 18, 2018
    According to your owner's manual, there are several drain points throughout the unit. One of those may be open or not fully close. Have you examined all the ports for leakage? If still a mystery, fill the tank and have fun watching the underside or have someone follow you as you drive to see if they can spot where water is dripping.
  • SkullAndSquirre's avatar
    SkullAndSquirre
    Explorer
    Dec 18, 2018
    We tested, and it's definitely coming out 'D' the vent line. I talked to another owner, and he put a ball valve at the end of his and closes it during passage. Seems like there should be a simple fix, like opening a sink line, or keeping the switch to 'tank' instead of 'normal' during transit. Hmm, unless the fill line is also at the bottom of the tank, then it could not act as a vent.
  • Palindat's avatar
    Palindat
    Explorer
    Dec 24, 2018
    I also loose water from my trailer. I discovered it was coming out the 2 vents on the top. My tank is between the axles and is only about 4-5 inches deep. The vents are on the passenger side. I usually fill up at home and buy the time I get to the campsite maybe a quarter of the water would have drained out. So I ran 2 lines to a convenient spot with shut of valves. Closed when traveling and open when filling.
    Rick P.
  • djousma's avatar
    djousma
    Explorer
    Dec 24, 2018
    I know that others on this site poo-poo the idea, but I added ball-valves to my overflow lines. You do have to be careful with them, and only have them closed while travelling. Even then if travelling over a large altitude changes, gotta keep that in mind too so as not to damage the tank due to pressure changes.

    Other than that, they work like a charm, and I arrive at my destination with a full tank....
  • Lynnmor's avatar
    Lynnmor
    Explorer
    Dec 24, 2018
    djousma wrote:
    I know that others on this site poo-poo the idea, but I added ball-valves to my overflow lines.


    That would be me.

    Just fix it right and run the venting up and out well above tank level. You only need to forget once, or have a pump check valve fail, and serious damage can result. Yes, the easy way out is always popular. :(

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