Micro Minnie FLX Blacktank Check valve location

[Minnie Honu]

Hello!

I have a Micro Minnie 2108TB FLX.

When I am flushing out my black tank, water leaks onto the floor of the trailer. I believe this is coming from a faulty check valve in the black tank flush out system.

Does anyone know how to access this valve? Or have any other suggestions of what could be leaking when I am flushing out the black tank?

Thank you so much for the help!! I appreciate your expertise!!

Keith

[Morich]

We don't get much in the way of drawings on the trailer group and that leaves us doing lots more guessing!
So it sounds like you are guessing right but we can't post up much info from drawings for your trailer.
Perhaps I can show some info from the motorized group to let you consider where you might find your problem?
Click these snips to get better view! Just view of random RV and what they did on them!

Just the flush line water comes in and the valve should be closed. Then when you turn water supply off, they want to be sure waste is not sucked from the tank back into the drinking water. The valve should open to break the vacuum/siphon created.
But if it sticks open, flush water comes out like you mention!
I can only say I expect them to be hidden in a wall and to keep lines shorter, they are often close to the flush water input???
Can you locate a space somewhere near the port for flush water and maybe hidden under something like a vanity but up high enough to avoid water just flowing out?

This one shows like I have seen but whether this is always true is an open question. It may be in a wall?
This is what I have seen in limited experience with the flushing system but maybe loo for a space high up under some cabinet where they just left an opening?
Sorry! No real good info! Any chance of hearing the water spray out if the RV is quiet and you listen along the suspect wall?

EXspurt?
That's a drip after the pressure is gone?

[Blue Sky]

Those anti-siphoning devices only work correctly in the upright position. Look for it in cabinets, or other spaces that it could be hidden from view, near the hose connection for the black tank sprayer. If the fastener(s) are loose and the device is leaning, it will leak. The good news is that it's fresh water - what you are putting into it.

[Wmlunt]

I believe it may be in a less accessible place.
The hydraulic schematics I have show the attached:
(Well I guess I have to figure out how to add a pic)

[Morich]

Link to current post on same picture posting issue:
https://www.winnieowners.com/forums/...ml#post3958706

[Wmlunt]

Schematic of 2108 MM

[Morich]

Sounds like time to think over whether this is the spot that leaks and maybe look for cover in refrig cabinet?

[Wmlunt]

I believe they are talking about the exterior cover on outside behind refrigerator?
Bill

[Morich]

No way to know but if we look at the measurements given on the tubing, it has to be pretty close to the flushing fill port and also pretty close to the black tank. Does that show anything that looks like close to the frig or which side?

Since this is something that is often hidden and needs to stand upright, it is often in a wall. There may be a cutout panel to get to it from one side like inside a cabinet or under a vanity but up high?
Since they mention the frig, is that near the port? That might mean it is hidden in the wall next to the frig? It has to be higher than most of the faucets, so not less than 20 or more inches off the floor, is my guess.
See the number on the length of the tubing? That will be the outer limits of how far from the inlet port it can be!
Maybe something like this near the frig? I drew in some walls that might be there?



Like an Easter egg hunt?
WE have to look under ALL the bushes to get it all found!