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Where is my waste water going??

A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
Hi Everyone. Just back from a trip and noticed the waste water from the sink is draining Away nicely, then not appearing at the other end! I haven’t had or used the van long but I distinctly recall from last year there is no waste tank, it should just flow out through the little drain pipe under the kitchen.

Am I missing something obvious (probably)

Thanks!
Alex
 
bxl_lad

bxl_lad

Its not easy being green...
Messages
575
Location
Brussels, Belgium
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T4 PopTop
What year is your van?
Normally the waste tank is behind the kitchen and drains using a valve in the left hand cupboard...
 
A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
Hi and thanks for the post! It’s a ‘96. Yes the red stopcock? I keep that open but I didn’t know there was a tank behind there. I’ve taken off the shield and there is a transparent tube which looks a bit gungy. Any tips on what to start exploring first?!

3448038B-F89D-4286-AEC1-FBA942B7A83D.jpeg
 
A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
Oh and that pic should be rotated clockwise!
 
mrcheesbrough

mrcheesbrough

Messages
802
Location
Wiltshire
Vehicle
T4 PopTop
If you switch the red lever to the vertical position, then pour a load of water into your sink the water should store in the tank. There is an icon on the central control screen (above the rear view mirror) that will flash to let you know the tank is full, but only when it’s full. Unlike the fresh water tank icon that has segments to let you know how much is left. It should hold around 20 litres I believe. Once the water has drained out of your sink stand out side the camper, roughly where the fridge is and get someone to switch the red lever to the horizontal - the waste water should deposit itself under the camper, near your feet. If that happens then you’ve nothing to fix.


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A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
Thanks Mrcheesbrough! I’ll defo try that but Actually i had the lever permanently down/horizontal/open, assuming the waste water would just drain out the pipe. This time I saw that the bucket I usually use was totally empty... which started this thread.

I have seen some threads about squirting water up the drain from the outside end, but I am supposed to close off the ‘overflow’ and I don’t know where/what that is.

thanks for your help!!!
 
mrcheesbrough

mrcheesbrough

Messages
802
Location
Wiltshire
Vehicle
T4 PopTop
Thanks Mrcheesbrough! I’ll defo try that but Actually i had the lever permanently down/horizontal/open, assuming the waste water would just drain out the pipe. This time I saw that the bucket I usually use was totally empty... which started this thread.

I have seen some threads about squirting water up the drain from the outside end, but I am supposed to close off the ‘overflow’ and I don’t know where/what that is.

thanks for your help!!!
Ah ha. I see. So you’ve seen water released under the camper before? That leads me to think you’ve just got a blockage in the drain pipe. I’ve connected a hosepipe to the drain pipe and pushed water back into the waste tank before. It easily cleared the problem.


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A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
Yes last year when I got the van I tried to flush it through with disinfectant. I remember it was very slow but it Worked - probably a blockage developing. I didn’t even realize there was a holding tank but now I guess it is backing up in there.

Ill try this water hose trick. Is the overflow That plastic ribbed pipe in the background of my photo??

thanks again!!
 
WelshGas

WelshGas

Retired after 42 yrs and enjoying Life.
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16,193
Location
Vale of Glamorgan
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T5 SE 180 4Motion
Yes last year when I got the van I tried to flush it through with disinfectant. I remember it was very slow but it Worked - probably a blockage developing. I didn’t even realize there was a holding tank but now I guess it is backing up in there.

Ill try this water hose trick. Is the overflow That plastic ribbed pipe in the background of my photo??

thanks again!!
I think you are confusing the Waste tank plumbing with the SE/Ocean.
The 1996 vehicle has slightly different plumbing set up.

The Drain (8) goes straight to the tank. The overflow (9) connects to the top of the tank with a separate outlet.
1087E632-8C19-4920-85B3-AB6072DE59EC.jpeg
 
mrcheesbrough

mrcheesbrough

Messages
802
Location
Wiltshire
Vehicle
T4 PopTop
The disinfectant is a good thing. Those tanks can become quite smelly if they’re left with waste water in them for too long.

I think the ribbed pipe you refer to is in fact the fresh water tank drain off. The waste tank doesn’t really have an overflow as such it’s more a vent but it would only leak out if you ignored the warning on the central control panel.

What version is your Westy? Ours doesn’t have a removable panel like that.


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A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
The diagram that Welshgas sent looks like my system. I guess if the block is in the bottom end of the tank / pipe then the overflow is irrelevant I should just blast the Water hose through the pipe And hope for the best. I’ll try this first, when I get the van back from the mechanic (brakes). Thanks everybody!!
 
bxl_lad

bxl_lad

Its not easy being green...
Messages
575
Location
Brussels, Belgium
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T4 PopTop
just a related question... Anyone know the capacity of the waste tank?
On the last trip we managed for the first time to get the tank full indicator flashing - good to see it works!
 
WelshGas

WelshGas

Retired after 42 yrs and enjoying Life.
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Messages
16,193
Location
Vale of Glamorgan
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T5 SE 180 4Motion
just a related question... Anyone know the capacity of the waste tank?
On the last trip we managed for the first time to get the tank full indicator flashing - good to see it works!
Don't know about yours I'm afraid but on my SE I believe it is about the same as the water tank, 30 L.
 
A

AlexInSweden

Messages
11
Location
Sweden
Vehicle
T4 PopTop
I watched a youtube clip last night which as I recall said 27L. I think it is the same as my system. Check out their channel it’s full of good stuff...
 
mrcheesbrough

mrcheesbrough

Messages
802
Location
Wiltshire
Vehicle
T4 PopTop
just a related question... Anyone know the capacity of the waste tank?
On the last trip we managed for the first time to get the tank full indicator flashing - good to see it works!
25L Fresh, 27L Grey. From the manual.


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sidepod

sidepod

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just a related question... Anyone know the capacity of the waste tank?
On the last trip we managed for the first time to get the tank full indicator flashing - good to see it works!
Out of interest what are you putting in the waste tank? Do you wash up in the van?
I’ve found in the past, anything left in the waste tank just smells, especially if you’re driving with the window open.
I just leave the valve open all the time. We never wash up in the van.
 
bxl_lad

bxl_lad

Its not easy being green...
Messages
575
Location
Brussels, Belgium
Vehicle
T4 PopTop
Out of interest what are you putting in the waste tank? Do you wash up in the van?
I’ve found in the past, anything left in the waste tank just smells, especially if you’re driving with the window open.
I just leave the valve open all the time. We never wash up in the van.
It's mainly washing of hands. We rarely wash dishes there, but admittedly this last trip I purposely let it fill up too see if the full tank indicator was working... it was :thumb
 
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